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ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ู…ุฑุฉ ุงู„ู„ู‰ ูุงุช ุจุฏุฃู†ุง ุจ
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section ุชู„ุงุชุฉ ุฎู…ุณุฉ ุงู„ู„ู‰ ู‡ูˆ ุงู„ dimension ุงุนุทูŠู†ุง
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ุชุนุฑูŠู ู„ู„ in dimensional vector space ุงูˆ ุงู„ vector
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space has dimension in ูˆ ุงุนุทูŠู†ุง ุชุนุฑูŠู ู„ู„ bases ูู‚ุท
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ูˆ ุงุนุทูŠู†ุง ุนู„ู‰ ุฐู„ูƒ ู…ุซู„ุง ูˆุงุญุฏุฉ ููƒุงู† ุชุนุฑูŠู ุงู„ in
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dimensional vector space ู‚ูˆู„ู†ุง ู‡ูˆ ุงู„ vector space
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ุงู„ู„ู‰ ุจุชุญู‚ู‚ ููŠู‡ ุดุฑุทูŠู†ุงู„ุดุฑุท ุงู„ุฃูˆู„ ุนู†ุฏูŠ ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„
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linearly independent vectors ุงู„ุดุฑุท ุงู„ุซุงู†ูŠ ู„ูˆ ุฃุฎุฏุช
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ุฃูƒุซุฑ ู…ู† ู‡ุฏูˆู„ ุจู…ู‚ุฏุงุฑ ูˆ ู„ูˆ vector ูˆุงุญุฏ ุจุฏู†ุง ู†ูƒูˆู†
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ู…ุนุงู‡ู… linearly dependent ุฅู† ุญุฏุซ ุฐู„ูƒ ูŠุจู‚ู‰ ุงู„
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dimension ุชุจุน ุงู„ vector space ู‡ูˆ ุนุฏุฏ ุงู„ linearly
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independent elements ู‡ุฐุง ุงู„ุชุนุฑูŠู ุงู„ุฃูˆู„ ุงู„ุชุนุฑูŠู
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ุงู„ุซุงู†ูŠู‚ู„ู†ุง V1 ูˆ V2 ูˆ V3 ูˆ Vk ุงู„ vectors ู‡ุฏูˆู„
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ุจุณู…ูŠู‡ู… basis ู„ู„ vector space ุฅุฐุง ุชุญู‚ู‚ ุดุฑุทุงู† ุงู„ุดุฑุท
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ุงู„ุฃูˆู„ ูƒุงู†ูˆุง ู‡ุฏูˆู„ ุจูŠูˆู„ุฏูˆู„ูŠ ุงู„ vector space ูƒู„ู‡ ููŠู‡
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ุงู„ุดุฑุท ุงู„ุซุงู†ูŠุจูŠูƒูˆู†ูˆุง ู‡ุฏูˆู„ ูƒู„ู‡ู… linearly independent
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ูˆู‚ู„ู†ุง ู…ู† ุงู„ุฃูุถู„ ุงู† ู†ุณุชุฎุฏู… ุงู„ุดุฑุท ุงู„ุซุงู†ูŠ ุซู… ุงู„ุดุฑุท
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ุงู„ุฃูˆู„ ูŠุนู†ูŠ ูƒูŠูุŸ ูŠุนู†ูŠ ุจุฏูŠ ุฃุซุจุช ุงู† ู‡ุฏูˆู„ ุงู„ vectors
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are linearly independent ูˆู…ู† ุซู… ุจุฏูŠ ุฃุซุจุช ุงู† ุงูŠ
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element ููŠ ุงู„ vector space ู‡ูˆ linear combination
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ุจุงุณุชุฎุฏุงู… ู‡ุฐู‡ ุงู„ vectors ู‡ุฐุง ู…ุง ุชุญุฏุซู†ุง ููŠู‡ ููŠ ุงู„ู…ุฑุฉ
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ุงู„ู…ุงุถูŠุฉ ุงู„ุงู† ู†ู†ุชู‚ู„ ุงู„ู‰ ู†ุธุฑูŠุฉ ุจุฑุถู‡ ู„ุงุฒู„ู†ุง ููŠ ู†ูุณ
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ุงู„ู…ูˆุถูˆุน ุงู„ู†ุธุฑูŠุฉ ุจุชู‚ูˆู„ ุงู† ู„ูˆ ูƒุงู† ุงู„ V ู‡ูˆ vector
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space ุงู„ dimension ู„ู‡ ูŠุณุงูˆูŠ N ูŠุจู‚ู‰ ุงู†ุง ุนู†ุฏูŠ ุดุฑุทูŠู†
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ู…ุชุญู‚ู‚ุงุช ุงู„ุงู† ุชู…ุงู…ุŸ ู„ูŠุดุŸ ู„ูˆ ุงู„ dimension ุงู„ vector
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space ู…ูŠุนุทูŠู†ูŠ ุงู† ู‡ูˆ ู…ูŠุนุทูŠู†ูŠ ุงู†then every basis of
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V spans V ูŠุจู‚ู‰ ุฃูŠ basis ู„ู„ vector space V ุจูŠูˆู„ุฏู„ูŠ
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ุฌู…ูŠุน ุนู†ุงุตุฑ ู…ู† V ูˆู‡ุฐุง ุฐูƒุฑู†ุง ุงู„ู…ุฑุฉ ุงู„ู„ูŠ ูุงุชุช ุฃู†
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ุงู„ุนู†ุงุตุฑ ุงู„ู„ูŠ ุจู‚ูˆู„ ุนู„ูŠู‡ู… basis ู„ู„ vector space ุฅุฐุง
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ุฃูŠ element ููŠ ุงู„ vector space ู‚ุฏุฑุช ุฃูƒุชุจ ุจุบุงุตุฏุฉ
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linear combination ุจู…ูŠู† ุจู‡ุฐู‡ ุงู„ vectors ุทูŠุจ ุจุฏู†ุง
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ู†ูŠุฌูŠ ู„ุจุฑู‡ุงู† ุงู„ู†ุธุฑูŠุฉูŠุจู‚ู‰ ุจุฑู‡ุงู†ุฉ ู†ุธุฑูŠุฉ ูƒุงู„ุชุงู„ูŠ ุจุฏูŠ
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ุงุฎุฏ basis ู…ูˆุฌูˆุฏ ููŠ V ูˆ ุงุซุจุช ุงู† ู‡ุฐุง ุงู„ basis
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ุจูŠูˆู„ุฏู„ูŠ ุฌู…ูŠุน ุนู†ุงุตุฑ V ุชู…ุงู…ุง ุงุฐุง ุชู… ู„ู†ุง ุฐู„ูƒ ุจูŠูƒูˆู†
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ุฎู„ุตู†ุง ู…ู† ุงู„ู…ูˆุถูˆุน ูŠุจู‚ู‰ ุจุฏุงุฌูŠ ุงู‚ูˆู„ ู‡ู†ุง let ุงู„ู„ูŠ ู‡ูˆ
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ู…ู† V1 ูˆ V2 ูˆ ู„ุบุงูŠุฉ ุงู„ VN ุจ
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ูŠุจู‚ู‰ ุงู†ุง ูุฑุถ ุงู† v1 ูˆv2 ูˆู„ุบุงูŠุฉ vn ุนุจุงุฑุฉ ุนู† ุงู„ basis
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ู„ ุงู„ vector space v ุทุจุนุง ุงู†ุง ู…ุฌุจุฑ ุงู† ุงู‚ูˆู„ ู…ู† 1
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ู„ุบุงูŠุฉ n ูˆ ู„ุง ูƒุงู† ุจูŠู…ูƒู† ุงุฒูŠุฏู‡ู… ุดูˆูŠุฉ ู…ุฌุจุฑ
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ู…ุฌุจุฑ ุฅุฌุจุงุฑูŠ ู„ุฅู†ู‡ dimension ู„ู„ vector space N ุชู…ุงู…
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ุงู„ dimension ู„ู‡ ูŠุจู‚ู‰ ุนุฏุฏ ุงู„ุนู†ุงุตุฑ ููŠ ุงู„ bases ูŠุจู‚ู‰
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ุจู†ุงุก ุนู„ูŠู‡ ู‡ุฏูˆู„ bases ู„ู…ูŠู† ู„ู„ vector space V ุชู…ุงู…
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ุงู„ุงู† ุงุฐุง ุงุซุจุช ู„ู‡ ุงู† ุงูŠ element ููŠ ุงู„ vector space
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V ู‡ูˆ linear combination ู…ู† ู‡ุฏูˆู„ ุงุชูˆู…ุงุชูŠูƒ ุจูŠูƒูˆู†ูˆุง
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ู‡ุฏูˆู„ ุจูŠูˆู„ูˆ ู„ุฌู…ูŠุน ุนู†ุงุตุฑ V ุจุงู„ุถุจุท ุชู…ุงู…ุง ู„ุฐู„ูƒ ุจุฑูˆุญ
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ุงุฎุฏ ุงูŠ ุนู†ุตุฑ V ู…ูˆุฌูˆุฏ ููŠ ุงู„ vector space V ู…ุฏุงู… ุงุฎุฏ
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V ููŠ ุงู„ vector space V ููŠ ุงุญุชู…ุงู„ุฅู† ู‡ุฐู‡ ุงู„ู€ V ุชุจู‚ู‰
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ููŠ ุงู„ู…ุฌู…ูˆุนุฉ ู‡ุฐู‡ ุตุญ ูˆู„ุง ู„ุฃุŸ ูˆุงุญุชู…ุงู„ ุฃู† ุชูƒูˆู† ุฎุงุฑุฌ
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ุงู„ู…ุฌู…ูˆุนุฉ ู…ุด ู„ุง ุงุญุชู…ุงู„ูŠู† ูˆุฑุฏุงุช ูŠุจู‚ู‰ ุจุฏูŠ ุฃุฏุฑุณ ู‡ุฐูŠู†
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ุงู„ุงุญุชู…ุงู„ูŠู† ูŠุจู‚ู‰ let ุงู„ V belongs to V ูุจุฌูŠ ุจู‚ูˆู„ if
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ุงู„ V ู…ูˆุฌูˆุฏ ููŠ ุงู„ู…ุฌู…ูˆุนุฉ V1 ูˆV2ู„ุบุงูŠุฉ ุงู„ V in then
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ู…ุงุฐุง ุณูŠุญุตู„ุŸ ู…ุฏุงู† V ู…ูˆุฌูˆุฏ ู‡ู†ุง ูŠุจู‚ู‰ V ุฃุจู‚ู‰ ุฃู‚ู„ ู…ู† 1
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ู…ู† ู‡ุคู„ุงุก ูŠุจู‚ู‰ then ุงู„ V ุณุชูƒูˆู† V I ูˆ I ุฃูƒุจุฑ ู…ู† ุฃูˆ
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ุชุณูˆู‰ 1 ูˆ ุฃู‚ู„ ู…ู† ุฃู† ุชุณูˆู‰ in ูŠุนู†ูŠ ุฅุญุชู…ุงู„ ุฃู† V ุชุจู‚ู‰ V
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1ูˆ ุงุญุชู…ุงู„ ุงู„ V ุชุจู‚ู‰ V2 ูˆ ุงุญุชู…ุงู„ ุงู„ V ุชุจู‚ู‰ V3 ูˆ
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ุงุญุชู…ุงู„ ุงู„ V ุชูƒูˆู† ู…ูŠู†ุŸ VN ูˆ ู‡ูƒุฐุง ุทูŠุจ ูŠุจู‚ู‰ ุงุญุชู…ุงู„ ุงู„
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V ู‡ุฐู‡ ุชุจู‚ู‰ ู…ูŠู†ุŸ ุชุจู‚ู‰ VI ูŠุจู‚ู‰ ุจู†ุงุก ุนู„ูŠู‡ ุจู‚ุฏุฑ ุงูƒุชุจ
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ุงู„ V ู‡ุฐู‡ ุนู„ู‰ ุงู„ุดูƒู„ ุงู„ุชุงู„ูŠ Zero ููŠ V10 ููŠ V2 ุฒุงุฆุฏ
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ุฒุงุฆุฏ ูˆุงุญุฏ ููŠ VI ุฒุงุฆุฏ ูˆุงู†ุถู„ ู„ุบุงูŠุฉ Zero ููŠ ุงู„ VIN
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ุจู†ูุนู„ู‡ุง ุจู†ูุนุด ู‡ุฐุง ูƒู„ู‡ ุจูŠุตูุฑ ุจูŠุธู„ ู…ูŠู† ุนู†ุฏูŠ ูˆ VI ู…ูŠู†
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ู‡ูŠูŠุจู‚ู‰ ูƒู„ุงู…ูŠ ุตุญูŠุญ ุตุญูŠุญ ูˆู„ุง ู„ุฃ ูŠุจู‚ู‰ ุงูŠุด ู…ุนู†ู‰ ู‡ุฐุง
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ุงู„ูƒู„ุงู… ุงู† V ู‡ูˆ linear combination ู…ู† ูƒู„ ุงู„ V's
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ุงู„ู„ูŠ ุนู†ุฏูŠ ูŠุจู‚ู‰ ู‡ู†ุง this means that ู‡ุฐุง ูŠุนู†ูŠ ุงู† ุงู„
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V is a linear combination
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Linear combination of ุงู„ู‡ู…ุงู† ูƒู„ ุงู„ุจูŠู‡ุงุช ุงู„ู„ูŠ ู„ุฏูŠู†ุง
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V1 ูˆ V2 ูˆ ู„ุบุงูŠุฉ VN
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ุฃูŠุด ุฃู†ุง ุจุฏู‡ ุฃุซุจุชุŸ ุฃูŠ basis span ุงู„ V ุฃุฎุฏุช element
68
00:06:49,660 --> 00:06:52,920
ุนุดูˆุงุฆูŠ ูˆ ุทุงู„ุน ููŠ ู…ูŠู† ููŠ ุงู„ู…ุฌู…ูˆุน ุงู„ู„ูŠ ุฃุฎุฏุชู… ู‡ุฐุง
69
00:06:52,920 --> 00:06:57,980
ุฌุฏุฑุช ุฃูƒุชุจู‡ ุนู„ู‰ linear combination ู…ู† ุงู„ V ู…ุนู†ุงุชู‡
70
00:06:57,980 --> 00:07:02,540
ุงู„ V ู‡ุฐุง ู…ูˆุฌูˆุฏ ูˆูŠู†ุŸ ููŠ ุงู„ span ุชุจุน ุงู„ vectors ุงู„ู„ูŠ
71
00:07:02,540 --> 00:07:12,780
ุนู†ุฏู†ุง ู‡ุฐู‡ ุทูŠุจุงู„ุงู† ุณุฑุฉ V ู…ูˆุฌูˆุฏ ููŠ ุงู„ span ุชุจุน ู…ู† V1
72
00:07:12,780 --> 00:07:20,580
ูˆ V2 ูˆ ู„ุบุงูŠุฉ VN ู‡ุฐุง ู„ูˆ ูƒุงู† ุงู„ V ู…ูˆุฌูˆุฏ ููŠ ุงู„ู…ุฌู…ูˆุนุฉ
73
00:07:20,580 --> 00:07:27,460
ู‡ุฐู‡ ุทูŠุจ ู‡ู†ุง ู„ูˆ ูƒุงู† ุงู„ V does not belong to ู…ู†
74
00:07:27,460 --> 00:07:33,260
ู„ู„ู…ุฌู…ูˆุนุฉ V1 ูˆ V2 ูˆ ู„ุบุงูŠุฉ VN
75
00:07:36,130 --> 00:07:42,630
ู„ูˆ ูƒุงู† ู‡ุฐุง ู…ุด ู…ูˆุฌูˆุฏ ู‡ู†ุง ุฅูŠุด ุงู„ู„ูŠ ุจุฏูŠ ูŠุญุตู„ then ุฅูŠุด
76
00:07:42,630 --> 00:07:50,910
ุฑุฃูŠูƒ ููŠ ุงู„ุณุช ู‡ุฐู‡ V ูˆ V1 ูˆ V2 ูˆ VN linearly
77
00:07:50,910 --> 00:07:59,210
dependent ูˆู„ุง linearly independent ุงู„
78
00:07:59,210 --> 00:08:03,710
vectors ู‡ุฐูˆู„ ุฃุถูุช ุนู„ูŠู‡ู… ุงู„ู„ูŠ ู‡ูˆ ุงู„ vector V ุงู„ู„ูŠ
79
00:08:03,710 --> 00:08:08,360
ู…ุด ู…ู†ู‡ู…ูŠุจู‚ู‰ ู‡ุฏูˆู„ ู…ุฌู…ูˆุน linearly dependent ูˆู„ุง
80
00:08:08,360 --> 00:08:13,680
linearly independentุŸ linearly independent ู„ูŠุดุŸ
81
00:08:13,680 --> 00:08:18,000
ู„ุฃู† ุงู„ dimension ู‡ุฐุง ู„ูŠู‡ ูŠุณุงูˆูŠ N ุฃูˆู„ ุชุนุฑูŠู ุฃุฎุฏู†ุงู‡
82
00:08:18,000 --> 00:08:22,440
ููŠ ู‡ุฐุง section ูˆุฐูƒุฑุชู‡ ู‚ุจู„ ู‚ู„ูŠู„ ุฃูˆู„ ู…ุง ุจุฏุฃุช ู…ุญุงุถุฑุชูŠ
83
00:08:22,440 --> 00:08:27,360
ู‚ู„ุช ู„ู…ุง ุฃู‚ูˆู„ ุงู„ vector space finite dimensional ุฃูˆ
84
00:08:27,360 --> 00:08:30,960
ุงู„ dimension ู„ู‡ ูŠุณุงูˆูŠ N ูŠุจู‚ู‰ ููŠู‡ ุนู†ุฏูŠ ุดุฑุทูŠู†
85
00:08:33,510 --> 00:08:37,850
ู„ูˆ ุงุถูุช ุนู„ูŠู‡ู… ูƒู…ุงู† vector ุจูŠุตูŠุฑ ู…ูŠู†ุŸ linearly
86
00:08:37,850 --> 00:08:41,290
dependent ูŠุจู‚ู‰ ู‡ุงูŠ ุงุถูุช ุนู„ูŠู‡ู… ุฏูˆู„ vector ูˆู„ุง ู„ุฃ
87
00:08:41,290 --> 00:08:48,670
ูŠุจู‚ู‰ then ู‡ุฏูˆู„ are linearly dependent ุงู„ุณุจุจ
88
00:08:48,670 --> 00:08:54,410
because the
89
00:08:54,410 --> 00:08:56,250
dimension
90
00:08:59,440 --> 00:09:09,180
v is n ูˆ ู‡ุฏูˆู„ ุนุฏุฏู‡ู… ุฌุฏูŠุด n ุฒุงุฆุฏ ูˆุงุญุฏ ูŠุนู†ูŠ ุงูƒุชุฑ
91
00:09:09,180 --> 00:09:14,160
ู…ู†ู‡ู… ุจู…ู‚ุฏุงุฑ ุฌุฏูŠุฏ ุจู…ู‚ุฏุงุฑ ูˆุงุญุฏ ุทูŠุจ ูƒูˆูŠุณ ู…ุงุฏุงู… ู‡ุฏูˆู„
92
00:09:14,160 --> 00:09:20,220
linearly dependent ูŠุจู‚ู‰ ู„ุงุฒู… ุฃู„ุงู‚ูŠ scalars ู‡ู‡ู‡
93
00:09:20,220 --> 00:09:23,820
ู…ูˆุฌูˆุฏุฉ ููŠ R ุจุญูŠุซ ุงุถุฑุจ scalar ููŠ ูƒู„ ูˆุงุญุฏ ูˆ ุฃุฌู…ุน
94
00:09:23,820 --> 00:09:37,100
ุจูŠุณูˆูŠ ุฌุฏูŠุด zero ูŠุจู‚ู‰ thismeans that there exist c0
95
00:09:37,100 --> 00:09:53,200
ูˆ c1 ูˆ c2 ูˆ cn not all zero such that ุจุญูŠุซ ุฃู† such
96
00:09:53,200 --> 00:10:03,940
thatุงู„ู„ูŠ ู‡ูˆ c node v ุฒุงุฆุฏ c1 v1 ุฒุงุฆุฏ c2 v2 ุฒุงุฆุฏ cn
97
00:10:03,940 --> 00:10:08,240
vn ุจุฏู‡ ูŠุณุงูˆูŠ zero ู…ูŠู† ุงู„ู„ูŠ ุจุชุณุฃู„ ุงู„ู„ูŠ ุจุชุญูƒูŠ ุงูŠูˆุฉ
98
00:10:08,240 --> 00:10:19,450
ูƒูŠู ู‡ุฏูˆู„ ู…ู† ู…ู† v1 ู„ุบุงูŠุฉ vn ุญุทูŠุช ุนู„ูŠู‡ู… ูƒู…ุงู† ูˆุงุญุฏู…ุด
99
00:10:19,450 --> 00:10:24,330
ู‡ูŠูƒ ุชุนุฑูŠู ุงู„ dimension ุงูˆู„ ุชุนุฑูŠู ู‡ุงูŠู‡ ู‡ุงูŠ V ูˆ
100
00:10:24,330 --> 00:10:28,990
ุจุนุฏูŠู† V ูˆุงุญุฏ ูˆ ุจุนุฏูŠู† V ุงุชู†ูŠู† ูŠุจู‚ู‰ ู‡ุฐู‡ ุงู„ู…ุฌู…ูˆุนุฉ
101
00:10:28,990 --> 00:10:33,070
ุงู„ู„ูŠ ููˆู‚ ุงู„ู„ูŠ linearly independent ุงุถุงูุช ู„ู‡ู… ูƒู…ุงู†
102
00:10:33,070 --> 00:10:36,900
ูˆุงุญุฏู…ู† ุชุนุฑูŠู ุงู„ dimension ุชุจุน ุงู„ู…ุฑุฉ ุงู„ู„ู‰ ูุงุชุช ุงูˆู„
103
00:10:36,900 --> 00:10:41,780
ุชุนุฑูŠู ุงุฎุฏู†ุงู‡ุง ูˆุฐูƒุฑุชู‡ ู‚ุจู„ ู‚ู„ูŠู„ ู…ุฑุชูŠู† ู‚ู„ุช ุชุนุฑูŠู ุงู†
104
00:10:41,780 --> 00:10:45,620
ู„ู…ุง ุงู‚ูˆู„ ุงู„ dimension ู„ู„ vector space N ู…ุนู†ุงุชู‡ ุงู†
105
00:10:45,620 --> 00:10:49,960
ุงู„ linearly independent vectors ุนุฏุฏู‡ู… ูŠุณุงูˆูŠ N ู„ูˆ
106
00:10:49,960 --> 00:10:53,730
ุงุถูุช ุนู„ูŠู‡ุง command vector ุจูŠุตูŠุฑูˆุง linearlyู‡ูŠ ุงู„ู„ูŠ
107
00:10:53,730 --> 00:10:57,810
ุงุญู†ุง ุจู†ู‚ูˆู„ู‡ุŒ ู„ู… ู†ุฃุชูŠ ุบูŠุฑ ุงู„ูƒู„ุงู… ู‡ุฐุงุŒ ู…ุงุฌูŠุจู†ุงู‡ ุดูŠ
108
00:10:57,810 --> 00:11:02,050
ุฌุฏูŠุฏุŒ ุชู…ุงู…ุŸ ู„ูƒู† ูŠุจุฏูˆ ุงู†ูƒู… ู…ุด ู‚ุฑูŠุงุชุŒ ู‡ุฐุง ุงู„ู„ูŠ
109
00:11:02,050 --> 00:11:05,130
ุฃุฎุฏู†ุงู‡ ุงู„ู…ุญุงุถุฑุฉ ุงู„ู…ุงุถูŠุฉุŒ ูˆ ุฑุบู… ุงู†ูŠ ู‚ู„ุชู‡ ู…ุฑุชูŠู†
110
00:11:05,130 --> 00:11:09,690
ุงู„ูŠูˆู…ุŒ ูˆู‡ูŠ ูƒู…ุงู† ุชุงู„ุช ู…ุฑุฉุŒ ูŠุจู‚ูˆุง ู…ุงู„ูƒูˆุด ุญุถุฑ ุจุนุฏ ุฐู„ูƒ
111
00:11:10,780 --> 00:11:15,460
ุทูŠุจ ูŠุจู‚ู‰ ุจุงุฌูŠ ุจู‚ูˆู„ ู‡ุฐุง ูŠุนู†ูŠ ุงู† ููŠ ุนู†ุฏูŠ ุซูˆุงุจุช ู…ุด
112
00:11:15,460 --> 00:11:20,280
ูƒู„ู‡ู… ุฃุตูุฑ ู„ุฅูŠุด ุงู† ุงู‚ูˆู„ linearly dependent ุจุญูŠุซ
113
00:11:20,280 --> 00:11:25,560
ุงู„ู…ุฌู…ูˆุน ู‡ุฐุง ูŠุณุงูˆูŠ zero ู…ุนู†ุงุชู‡ ุงู„ุณูŠู‡ุงุช ู‡ุฏูˆู„ ููŠู‡ู…
114
00:11:25,560 --> 00:11:33,430
ุนู„ู‰ ุงู„ุฃู‚ู„ ูˆู„ูˆ ุฑู‚ู… ูˆุงุญุฏ ู„ุงูŠุณุงูˆูŠ zeroุทุจ ุงู†ุง ุจุฏู‰ ุงุฏุนู‰
115
00:11:33,430 --> 00:11:38,310
ุงู„ุงู† ุงู† c node ู‡ุฐุง ู„ุง ูŠุณุงูˆูŠ zero ูˆู†ุดูˆู ุงู„ุฏุนุงุก ู‡ุฐุง
116
00:11:38,310 --> 00:11:46,930
ุตุญ ูˆู„ุง ุบู„ุท ูŠุจู‚ู‰ ุจุงุฌูŠ ุจู‚ูˆู„ ูˆูŠ ุง claim that ุงู† c
117
00:11:46,930 --> 00:11:53,430
node ู„ุง ูŠุณุงูˆูŠ zero claim ูŠุนู†ูŠ ูŠุฏุนู‰ ูŠุจู‚ู‰ ุงู†ุง ุจุฏุนู‰
118
00:11:53,430 --> 00:11:58,230
ุงู„ุงู† ุงู† c node ู‡ุฐุง ู„ุง ูŠุณุงูˆูŠ zero ุจุฏู‰ ุงุดูˆู ุงู„ุฏุนุงุก
119
00:11:58,230 --> 00:12:03,610
ุตุญ ูˆู„ุง ุบู„ุทู„ูˆ ูุฑุถุช ุนูƒุณ ู‡ุฐุงุŒ ู„ูˆ ูุฑุถุช ุงู† ุงู„ู€C note
120
00:12:03,610 --> 00:12:07,490
ุจุฏู‰ ูŠุณุงูˆูŠ zero ูŠุง ุจู†ุงุชุŒ ูŠุจู‚ู‰ ุงู„ term ู‡ุฐุง ุจุฑูˆุญ ุจ
121
00:12:07,490 --> 00:12:13,160
zeroุŒ ู…ูŠู† ุจุธู„ุŸ ู‡ุฏูˆู„ุทุจ ู‡ุฏูˆู„ ูƒู„ู‡ู… linearly
122
00:12:13,160 --> 00:12:17,180
independent ุฅุฐุง ุฅุฌุจุงุฑูŠ ุงู„ุจุงู‚ูŠ ูƒู„ู‡ ุจุตูŠุฑ ุจู…ูŠู†ุŸ ุจ
123
00:12:17,180 --> 00:12:20,980
zero ุฅุฐุง ูŠุจู‚ู‰ ู…ุนู†ู‰ ู‡ุฐุง ุงู„ูƒู„ุงู… C node ุจูŠุณุงูˆูŠ C ูˆุงุญุฏ
124
00:12:20,980 --> 00:12:23,940
ุจูŠุณุงูˆูŠ C independent ู…ุนู‚ูˆู„ ู‡ุฐุง ุงู„ูƒู„ุงู…ุŸ ุทุจ ุฃู†ุง ุฌุงูŠ
125
00:12:23,940 --> 00:12:27,800
linearly dependent ูˆูƒูŠู ู‡ุฏูˆู„ ุจูŠุณุงูˆูŠุŸ ู…ุงููŠุด ุฅู…ูƒุงู†ูŠุฉ
126
00:12:27,800 --> 00:12:32,700
ูŠุจู‚ู‰ ุจุตูŠุฑ ูƒู„ุงู…ูŠ ุบู„ุท ูˆุนูƒุณู‡ ู‡ูˆ ู…ูŠู†ุŸ ุตุญ ูŠุจู‚ู‰ ุฃู†ุง ุจุงุฌูŠ
127
00:12:32,700 --> 00:12:37,340
ุจู‚ูˆู„ ูˆ ุงู‚ู„ู… ุฐุงุชู†ุง ุงู„ุฏุนูŠ ุฃู† ุงู„ C node ูŠุณุงูˆูŠ zero
128
00:12:37,340 --> 00:12:38,300
otherwise
129
00:12:40,470 --> 00:12:47,530
ูŠุนู†ูŠ ูˆ ุฅู„ุง ู„ูˆ ูƒุงู† ุงู„ c note ุจุฏู‡ ุณุงูˆูŠ zero then ุงู„
130
00:12:47,530 --> 00:12:56,250
c1 v1 ุฒุงูŠุฏ c2 v2 ุฒุงูŠุฏ cn vn ุจุฏู‡ ุณุงูˆูŠ zero ู‡ุฐุง ุฅูŠุด
131
00:12:56,250 --> 00:13:02,550
ู…ุนู†ุงู‡ุŸ ู…ุนู†ุงู‡ ุฅู†ู‡ c1 ุจุฏู‡ ุณุงูˆูŠ c2 ุจุฏู‡ ุณุงูˆูŠ ุจุฏู‡ ุณุงูˆูŠ
132
00:13:02,550 --> 00:13:09,230
cn ุจุฏู‡ ุณุงูˆูŠ zero because ุงู„ุณุจุจ ุฅู†ู‡ v1
133
00:13:18,000 --> 00:13:24,660
ูŠุจู‚ู‰ ุฅุฐุง ู‡ุฐุง ุงู„ูƒู„ุงู… ุตุญูŠุญ ูˆู„ุง ุบู„ุทุŸุฅู† ุณูŠ ู†ูˆุฏ ุจูŠุจู‚ู‰ 0
134
00:13:24,660 --> 00:13:31,360
ุบู„ุท ูŠุจู‚ู‰ ุงู„ุตุญ ุฅู†ู‡ ุณูŠ ู†ูˆุฏ ู…ุงู„ู‡ ู„ุง ูŠุณุงูˆูŠ 0 ู„ุฅู† ู„ูˆ
135
00:13:31,360 --> 00:13:34,740
ุณูˆู‰ 0 ูŠุจู‚ู‰ ู‡ุฏูˆู„ ุจูŠุจู‚ู‰ ุณูˆู‰ 0 ูˆู‡ุฏุง ูƒู„ู‡ ุณูˆู‰ 0
136
00:13:34,740 --> 00:13:38,540
linearly independent ูŠุจู‚ู‰ ู…ุนู†ุงุชู‡ ุจุตูŠุฑู‡ ู‡ุฏูˆู„ ูƒู„ู‡ู…
137
00:13:38,540 --> 00:13:43,780
linearly independent ูˆู‡ุฐุง ุฎุทุฃ ูŠุจู‚ู‰ ู‡ู†ุง ุณูŠ ู†ูˆุฏ ู„ุง
138
00:13:43,780 --> 00:13:52,290
ูŠู…ูƒู† ุฃู† ูŠุณุงูˆูŠ 0ุชู…ุงู… ูŠุจู‚ู‰ ุจู†ุงุก ุนู„ูŠู‡ so c node v ุจุฏู‡
139
00:13:52,290 --> 00:14:01,350
ูŠุณูˆูŠ ู†ุงู‚ุต c1 v1 ู†ุงู‚ุต c2 v2 ู†ุงู‚ุต cn ููŠ ุงู„ vn ู†ู‚ุณู…
140
00:14:01,350 --> 00:14:07,000
ูƒู„ู‡ ุนู„ู‰ c node ู„ูŠุดุŸ ู„ุฃู† c node ู„ุง ูŠุณูˆูŠุฃุฐุง ุงู„ V
141
00:14:07,000 --> 00:14:13,920
ู†ุงู‚ุต C1 ุนู„ู‰ C node ููŠ ุงู„ V1 ู†ุงู‚ุต C2 ุนู„ู‰ C node ููŠ
142
00:14:13,920 --> 00:14:20,120
ุงู„ V2 ู†ุงู‚ุต ู†ุงู‚ุต CN ุนู„ู‰ C node ููŠ ุงู„ VN ุฃูˆ ุงู†
143
00:14:20,120 --> 00:14:26,380
ุดุฆุชูˆู„ู†ุง ูู‚ูˆู„ู†ุง ุงู† V ุจุฏู‡ ูŠุณู…ูŠ ู‡ุฐุง A1 ูƒู„ู‡ ูŠุจู‚ู‰ A1 V1
144
00:14:26,380 --> 00:14:32,460
ุฒุงุฆุฏ A2 V2 ุฒุงุฆุฏ AN VN
145
00:14:34,880 --> 00:14:39,620
ู…ุนู†ู‰ ู‡ุฐุง ุงู„ูƒู„ุงู…ุŸ ู…ุนู†ุงุชู‡ ุงู„ู€ Element V ุงู„ู„ูŠ ู…ุด
146
00:14:39,620 --> 00:14:43,540
ู…ูˆุฌูˆุฏ ููŠ ุงู„ set of linearly independent elements
147
00:14:43,540 --> 00:14:49,260
ู‡ูˆ linear combination ู…ู† ู…ู†ุŸ ู…ู† ุงู„ุขุฎุฑูŠู† ูŠุจู‚ู‰ ู‡ู†ุง
148
00:14:49,260 --> 00:14:55,160
Sir V is a linear combination
149
00:14:58,100 --> 00:15:06,060
combination of V1 ูˆV2 ูˆูƒุฐู„ูƒ VN
150
00:15:10,000 --> 00:15:14,060
ุทู„ุน ู‡ู†ุง V ู„ู…ุง ูƒุงู† ููŠ ุงู„ู…ุฌู…ูˆุนุฉ ุทู„ุน ู‡ูˆ linear
151
00:15:14,060 --> 00:15:18,600
combination ู…ู† ุงู„ุขุฎุฑูŠู† ูˆู„ู…ู‘ุง ู…ุงูƒุงู†ุด ููŠ ุงู„ู…ุฌู…ูˆุนุฉ
152
00:15:18,600 --> 00:15:23,260
ุทู„ุน ูƒู…ุงู† ู‡ูˆ linear combination ู…ู† ุงู„ุขุฎุฑูŠู† ู…ุนู†ุงุชู‡
153
00:15:23,260 --> 00:15:29,720
ุงูŠุดุŸ ู…ุนู†ุงุชู‡ ู‡ุฐุง ูŠู…ุซู„ ู…ู†ุŸ basis ู…ุนู†ุงุชู‡ ุงู„ basis ู‡ุฐุง
154
00:15:29,720 --> 00:15:38,290
spanning ุงู„ V ูŠุจู‚ู‰ ู‡ู†ุงุงู„ู€ V ู…ูˆุฌูˆุฏ ููŠ ุงู„ู€ span
155
00:15:38,290 --> 00:15:47,290
ุจุชุงุจุน ุงู„ู€ V ูƒู„ู‡ุง ูŠุจู‚ู‰ ุฏุต ูˆู‡ูƒุฐุง ุงู„ู„ูŠ ู‡ูˆ ุงู„ V1 ูˆ ุงู„
156
00:15:47,290 --> 00:15:55,750
V2 ูˆ ุงู„ VN ูƒู„ ุงู„ู…ุฌู…ูˆุนุฉ ู‡ุฐู‡ ู…ุงู„ู‡ุง span ุงู„ู„ูŠ ู‡ูˆ ุงู„ V
157
00:15:59,930 --> 00:16:05,630
ูŠุจู‚ู‰ ุจู†ุงุก ุนู„ูŠู‡ ู…ู† ุงู„ุฃู†ูุง ุตุงุนุฏุง ุฃูŠ basis ู„ vector
158
00:16:05,630 --> 00:16:10,390
space ุจุฏูŠ ูŠุฌูŠุจู„ูŠ ุฌู…ูŠุน ุนู†ุงุตุฑ ุงู„ space ุจูŠ listุชู†ุง
159
00:16:10,390 --> 00:16:14,550
ุชู…ุงู…ุŸ ูˆู‡ูŠ ุฃุซุจุชู†ุง ุฃู†ู‡ ู„ูˆ ูƒุงู† ุงู„ element ู…ู† ุถู…ู† ุงู„
160
00:16:14,550 --> 00:16:18,470
basis ุฃูˆ ูƒุงู† ุงู„ element ู…ู† ุจุฑุง ุงู„ basis ูŠุจู‚ู‰ ูƒุชุจุชู‡
161
00:16:18,470 --> 00:16:22,910
ุนู„ู‰ ุตูŠุบุฉ linear combination ู…ู† ู…ู† ุนู†ุงุตุฑ ุงู„ basis
162
00:16:23,250 --> 00:16:28,010
ูŠุจู‚ู‰ ุญุท ุงู„ู…ุนู„ูˆู…ุฉ ู‡ุฐู‡ ููŠ ุฏู…ุงุบูƒ ู‡ุฐู‡ ู…ุนู„ูˆู…ุฉ ุฃุณุงุณูŠุฉ
163
00:16:28,010 --> 00:16:39,270
ุจุฏู†ุง ู†ุจู†ูŠ ุนู„ูŠู‡ุง ูƒุซูŠุฑ ู…ู† ุงู„ุดุบู„ ุชุจุนู†ุง ููŠ
164
00:16:39,270 --> 00:16:48,670
ุงู†ุง ูƒู…ุงู† ู†ุธุฑูŠุฉ ุจุณูŠุทุฉ ุตุบูŠุฑุฉ ู…ุด ุฒูŠ ู‡ุฐู‡ ุงู„ู†ุธุฑูŠุฉ
165
00:16:48,670 --> 00:16:50,450
ุจุชู‚ูˆู„ ู…ุง ูŠุงุชูŠ theorem
166
00:16:57,290 --> 00:17:17,730
ุฅุฐุง ูƒุงู† ู‡ู†ุงูƒ ู…ุฌู„ุฏ ู…ู† ุงู„ูˆุงุญุฏุงุช ุงู„ู„ูŠู†ูŠุงุฑูŠุฉ ุงู„ูˆุญุฏุงุช
167
00:17:17,730 --> 00:17:20,090
ุงู„ู„ูŠู†ูŠุงุฑูŠุฉ ุงู„ูˆุญุฏุงุช ุงู„ู„ูŠู†ูŠุงุฑูŠุฉ ุงู„ู„ูŠู†ูŠุงุฑูŠุฉ ุงู„ูˆุงุญุฏุฉ
168
00:17:20,090 --> 00:17:20,790
ู…ู† ู…ุฌู„ุฉ V
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a vector space
170
00:17:34,330 --> 00:17:42,130
V that
171
00:17:42,130 --> 00:17:47,190
spans
172
00:17:47,190 --> 00:17:52,430
V then
173
00:17:52,430 --> 00:17:56,870
V has
174
00:17:58,890 --> 00:18:16,770
Dimension N ุทูŠุจ
175
00:18:16,770 --> 00:18:22,630
ูƒูˆูŠุณ ู†ุฑู‰ ุนู„ู‰ ุงู„ู†ุธุฑูŠุฉ ู…ุฑุฉ ุซุงู†ูŠุฉ ู†ู‚ุฑุฃ ูˆ ู†ุญุงูˆู„ ู†ูู‡ู…
176
00:18:22,630 --> 00:18:27,880
ูƒูŠู ุญู†ุจุฑู‡ู†ู‡ุงุจู‚ูˆู„ if there is a set of n linearly
177
00:18:27,880 --> 00:18:31,540
independent elements of a vector space V ุฐุงุช span
178
00:18:31,540 --> 00:18:36,460
V ุจุฌู‡ ุฃู†ุง ุนู†ุฏูŠ ู…ุนู„ูˆู…ุชูŠู† ุงู„ู…ุนู„ูˆู…ุฉ ุงู„ุฃูˆู„ู‰ ุฎุฏุช ู…ุฌู…ูˆุนุฉ
179
00:18:36,460 --> 00:18:39,720
ู…ู† ุงู„ vectors ุงู„ู„ูŠ ุฌูŠุชู‡ู… linearly independent
180
00:18:39,720 --> 00:18:45,680
ุงู„ู…ุนู„ูˆู…ุฉ ุงู„ุซุงู†ูŠุฉู‡ุฏูˆู„ ุงู„ vectors ุจูŠูˆู„ู‘ูˆู„ูŠ ุฌู…ูŠุน ุฃู†ุตุฑ
181
00:18:45,680 --> 00:18:49,420
V ุจู„ุง ุงุณุชุซู†ุงุก ูŠุนู†ูŠ ุฃูŠ ุนู†ุตุฑ ููŠ ุงู„ vector space V
182
00:18:49,420 --> 00:18:53,720
ุจู‚ุฏุฑ ุฃูƒุชุจู‡ ุนู„ู‰ ุดูƒู„ ุงู„ linear combination ู…ู† ุงู„ set
183
00:18:53,720 --> 00:18:58,120
of N linearly independent elements ุจู‚ูˆู„ ุฅู† ุงู„ V
184
00:18:58,120 --> 00:19:03,720
has a dimension N ูŠุจู‚ู‰ ุจุฏูŠ ุฃุซุจุช ุฃู† ุงู„ dimension ู„ู„
185
00:19:03,720 --> 00:19:09,370
vector space ู‡ุฐุง ูŠุณุงูˆูŠ Nุงู„ุงู† ุงู†ุง ู…ุด ู‡ู†ุซุจุช ุงู† ุงู„
186
00:19:09,370 --> 00:19:13,650
dimension ุงู„ vector space ูŠุณุงูˆูŠ ุงู† ุจุฏูŠ ุงุซุจุช ู†ู‚ุทุชูŠู†
187
00:19:13,650 --> 00:19:17,570
ุงู„ู„ูŠ ู‡ูˆ ุงูˆู„ ุชุนุฑูŠู ุงุฎุฏู†ุงู‡ ููŠ ุงู„ู…ุญุงุถุฑุฉ ุงู„ู…ุงุถูŠุฉ ุจุฏูŠ
188
00:19:17,570 --> 00:19:21,750
ุงุซุจุชู‡ ุงู† ุนู†ุฏูŠ in linearly independent elements
189
00:19:21,750 --> 00:19:25,730
ู„ุทู„ุจ ุซุงู†ูŠ ู„ูˆ ุงุถูุช ุนู„ูŠู‡ู… ูƒู…ุงู† vector ุจุฏูŠ ูŠูƒูˆู†ูˆุง
190
00:19:25,730 --> 00:19:31,910
ู…ุงู„ู‡ู… linearly dependent ุชู…ุงู…ุŸ ูŠุจู‚ู‰ ู‡ุฐุง ุงู„ู„ูŠ ุงุญู†ุง
191
00:19:31,910 --> 00:19:34,510
.. ุงู„ู„ูŠ ุงุญู†ุง ุจู†ู‚ูˆู„ู‡ ูŠุจู‚ู‰ ุงู„ proof
192
00:19:38,330 --> 00:19:47,650
ุจุฏุง ุงุฎุฏ let V1 ูˆ V2 ูˆ ู„ุบุงูŠุฉ VN ุจู€linearly
193
00:19:47,650 --> 00:19:53,450
independent elements of V
194
00:20:01,110 --> 00:20:05,630
ู‡ุคู„ุงุก ู…ุงู„ู‡ู…ุŸ ู‡ุคู„ุงุก ููŠ ุญุฏ ุฐุงุชู‡ู… ูŠุชุนุงู…ู„ูˆู† ุจุงู„ู€V
195
00:20:05,630 --> 00:20:15,510
ูˆูŠูˆู„ุฏูˆู† ุจุงู„ู€V ูŠุจู‚ู‰ Linear ู…ู† ุฐุงุช ูŠุชุนุงู…ู„ ุจุงู„ู€V
196
00:20:15,510 --> 00:20:18,830
ุทูŠุจ
197
00:20:18,830 --> 00:20:23,810
ูƒูˆูŠุณุŒ ู…ุงู‡ุฐุง ูŠุชุนุงู…ู„ ุจุงู„ู€VุŸ ูŠุนู†ูŠ ุฃูŠ element ู…ู† V ู‡ูˆ
198
00:20:23,810 --> 00:20:28,410
Linear Combination ู…ู† ู‡ุคู„ุงุกุŒ ุตุญูŠุญ ูˆู„ุง ู„ุฃุŸ ูŠุจู‚ู‰ ู‡ุฐุง
199
00:20:28,410 --> 00:20:39,750
ู…ุนู†ุงู‡ุฅู†ู‡ every element of V is a linear
200
00:20:39,750 --> 00:20:48,030
combination of
201
00:20:48,030 --> 00:20:53,210
V1 ูˆ V2 ูˆ ู„ุบุงูŠุฉ VN
202
00:21:00,160 --> 00:21:03,860
ู‡ูˆ ุฐูƒุฑู†ุง ุงู†ู‡ ู…ุด ู‡ู†ุซุจุช ุงู† ุงู„ dimension ุงู„ูˆ ูŠุณุงูˆูŠ
203
00:21:03,860 --> 00:21:08,720
ุงู†ู‡ ุจุฏู‡ ูŠุซุจุช ุดุบู„ุชูŠู† ุงู„ุดุบู„ ุงู„ุฃูˆู„ ู…ุนุชุงู‡ ุงูŠุด ู‚ุงู„ู„ูŠุŸ
204
00:21:08,720 --> 00:21:12,740
ู‚ุงู„ู„ูŠ ููŠ ุนู†ุฏูƒ n linearly independent elements ูŠุจู‚ู‰
205
00:21:12,740 --> 00:21:18,160
ู‡ุงูŠ ุงู„ุดุบู„ ู…ุนุชุงู‡ ูˆุฒูŠุงุฏุฉ ุดูˆูŠุฉ ุดูˆูŠุฉ that spans V
206
00:21:18,160 --> 00:21:23,680
ุจูŠูˆู„ุฏูˆู„ูŠ ู…ู†ุŸ ุจูŠูˆู„ุฏูˆู„ูŠ ุนู†ุงุตุฑ V ุจู‚ูˆู„ ุงู‡ ู‡ุฏูˆู„ ุงู„ n
207
00:21:23,680 --> 00:21:29,310
linearly independent ู„ูˆ ุฒูŠุช ุนู„ูŠู‡ู… ูƒู…ุงู† vectorู…ุงุฐุง
208
00:21:29,310 --> 00:21:35,610
ูŠุญุตู„ุŸ Linearly Independent ูˆู‡ุฐุง ุฅุฌุจุงุฑูŠ ู„ูˆ ูƒุงู†
209
00:21:35,610 --> 00:21:40,030
Linearly Independent ู‡ุฐุง ู„ูˆ ูƒุงู† ู„ูˆ ูƒุงู† ุงู„
210
00:21:40,030 --> 00:21:42,990
dimension ูŠุณุงูˆูŠ N ู„ูƒู† ุฃู†ุง ู…ุด ุนุงุฑู ุฅู† ุงู„ dimension
211
00:21:42,990 --> 00:21:49,170
ุฃู†ุง ุจุฏูŠ ุฃุซุจุช ุฅู† ุงู„ dimension ูŠุณุงูˆูŠ M ู„ูƒู† ุฎู„ูŠู†ูŠ
212
00:21:49,170 --> 00:21:53,250
ุฃุฑุฌุน ุจุงู„ุฐุงูƒุฑุฉ ุฅู„ู‰ ุงู„ูˆุฑุงุก ุดูˆูŠุฉ ู†ุฐูƒุฑ ู…ุด section
213
00:21:53,250 --> 00:21:58,970
ุชู„ุงุชุฉ ุฃุฑุจุนุฉ section ุชู„ุงุชุฉ ุชู„ุงุชุฉู„ูˆ ุฃุฎุฐุช ู…ุฌู…ูˆุนุฉ ู…ู†
214
00:21:58,970 --> 00:22:03,770
ุงู„ vectors ูˆ ุฃุฎุฐุช ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ vectors ุงู„ุชุงู†ูŠุฉ ูˆ
215
00:22:03,770 --> 00:22:08,330
ุฃุซุจุช ุฃู† ูƒู„ vector ููŠ ุงู„ู…ุฌู…ูˆุนุฉ ุงู„ุฃูˆู„ู‰ ู‡ูˆ linear
216
00:22:08,330 --> 00:22:13,250
combination ู…ู† ุงู„ุชุงู†ูŠุฉ ูˆ ูƒุงู†ุช ุงู„ู…ุฌู…ูˆุนุฉ ุฃูƒุจุฑ ู…ู†
217
00:22:13,250 --> 00:22:19,090
ุงู„ุชุงู†ูŠุฉ ุจุฌู‡ุฏ linearly dependentู‚ู„ู†ุง ุฅุฐุง ูƒุงู† ุงู„ V1
218
00:22:19,090 --> 00:22:26,330
ูˆ V2 ูˆ ู„ุบุงูŠุฉ VN ู‡ุฏูˆู„ ู…ุงู„ู‡ู… ูˆ ุนู†ุฏูŠ ู…ุฌู…ูˆุนุฉ ุชุงู†ูŠุฉ U1
219
00:22:26,330 --> 00:22:34,770
ูˆ U2 ูˆ ู„ุบุงูŠุฉ UK ูˆ ู„ุฌูŠุช ุฅู† ุงู„ N ุฃูƒุจุฑ ู…ู† K ุฅู† ุญุฏุซ
220
00:22:34,770 --> 00:22:39,370
ุฐู„ูƒ ุซู… ูƒู„ ุนู†ุงุตุฑ ู…ู† V1 ู„ุบุงูŠุฉ VN ู‡ูˆ linear
221
00:22:39,370 --> 00:22:44,130
combination ู…ู† ุงู„ U1 ูˆ U2 ูˆ ู„ุบุงูŠุฉUK ูŠุจู‚ู‰ ููŠ ู‡ุฐู‡
222
00:22:44,130 --> 00:22:47,390
ุงู„ุญุงู„ุฉ ุจู‚ูˆู„ ุงู† ุงู„ V ู‡ุงุช ู‡ุฏูˆู„ ูƒู„ู‡ู… are linearly
223
00:22:47,390 --> 00:22:52,750
dependent ู…ุด ู‡ูŠูƒ ุฃุฎุฏู†ุง ู†ุธุฑูŠุฉ ููŠ section ุชู„ุงุชุฉ
224
00:22:52,750 --> 00:22:58,270
ุชู„ุงุชุฉ ุทูŠุจ ูŠุจู‚ู‰ ุฃู†ุง ุงู„ุฃู† ุจุชุทุจู‚ ู‡ุฐู‡ ุงู„ู†ุธุฑูŠุฉ ุชุทู„ุนูˆู„ูŠ
225
00:22:58,270 --> 00:23:05,330
ูŠุง ุจู†ุงุช ู‡ุฏูˆู„ ู…ุงู„ู‡ู… linearly independent ูŠุจู‚ู‰ ู‡ุฏูˆู„
226
00:23:05,330 --> 00:23:14,700
ู„ูˆ ุฃุฎุฏุช ุนุฏุฏ ู…ู†ู‡ู… ุฃูƒุชุฑ ุจูˆุงุญุฏLinearly ุจุญูŠุซ ุงู†ุง ุฌุงูŠู„
227
00:23:14,700 --> 00:23:19,620
ุงูŠุด ู‡ุฏูˆู„ Linearly ุงู† ุฏูŠ ู…ู†ู‡ุง ุฐุงุช Spans V Spans V
228
00:23:19,620 --> 00:23:24,040
ูŠุนู†ูŠ ุงูŠุด ูŠุนู†ูŠ ูƒู„ element ููŠ V ู‡ูˆ linear
229
00:23:24,040 --> 00:23:37,500
combination ู…ู† ู‡ุฏูˆู„ ูŠุจู‚ู‰ that is every element of
230
00:23:37,500 --> 00:23:45,780
V isA linear combination
231
00:23:45,780 --> 00:23:49,960
of
232
00:23:49,960 --> 00:23:58,360
V1 ูˆ V2 ูˆ ู„ุบุงูŠุฉ VN
233
00:24:01,170 --> 00:24:06,110
ูŠุจู‚ู‰ ู‡ู†ุง ุงุฎุฏ ูƒู„ element ู…ู† V ู‡ูˆ linear combination
234
00:24:06,110 --> 00:24:10,670
ูƒู„ element ู…ู† V ู‡ูˆ linear combination ูƒู„ element
235
00:24:10,670 --> 00:24:15,690
ู…ู† V ู‡ูˆ linear combination ูƒู„ element ู…ู† V ู‡ูˆ
236
00:24:15,690 --> 00:24:17,490
linear combination ูƒู„ element ู…ู† V ู‡ูˆ linear
237
00:24:17,490 --> 00:24:20,270
combination ูƒู„ element ู…ู† V ู‡ูˆ linear combination
238
00:24:20,270 --> 00:24:25,370
ูƒู„ element ู…ู† V ู‡ูˆ linear
239
00:24:25,370 --> 00:24:25,390
combination ูƒู„ element ู…ู† V ู‡ูˆ linear combination
240
00:24:25,390 --> 00:24:25,910
ูƒู„ element ู…ู† V ู‡ูˆ linear combination
241
00:24:28,730 --> 00:24:47,190
ู†ุธุฑูŠุฉ ุณุงุจู‚ุฉ Any set with more than N elements is
242
00:24:47,850 --> 00:24:53,930
Linearly dependent ุตุญูŠุญ ูˆู„ุง ู„ุฃ ูŠุจู‚ู‰ ุฃูŠ ู…ุฌู…ูˆุนุฉ ุฃุฎุฑู‰
243
00:24:53,930 --> 00:24:58,750
ู…ู† ู‡ุฐู‡ ุงู„ vectors ุฃูƒุชุฑ ู…ู† N elements ุจุชูƒูˆู† ู…ุงู„ู‡ุง
244
00:24:58,750 --> 00:25:02,430
Linearly dependent ู‡ุฐู‡ ุงู„ุชุนุฑูŠู ู…ู† ุฃูŠู†ุŸ ุชุนุฑูŠู ุงู„
245
00:25:02,430 --> 00:25:05,130
dimension ุงู„ู„ูŠ ุฃุฎุฏู‡ุง ุงู„ู…ุฑุฉ ุงู„ู„ูŠ ููŠ ุงู„ุฃูˆู„ ุชุนุฑูŠู
246
00:25:05,130 --> 00:25:18,390
ูŠุจู‚ู‰ Thus ูˆ ู‡ูƒุฐุง The dimension ofV is in ูŠุนู†ูŠ ุฃู†ุง
247
00:25:18,390 --> 00:25:34,430
ุทุจู‚ุช ุงู„ุชุนุฑูŠู ุชุทุจูŠู‚ุง ู…ุจุงุดุฑุง ูƒู…ุงู†
248
00:25:34,430 --> 00:25:39,850
ู†ุธุฑูŠุฉ ุซุงู„ุซุฉ without proof ูŠุจู‚ู‰ ู‡ุงูŠ ูƒู…ุงู† ู†ุธุฑูŠุฉ
249
00:25:39,850 --> 00:25:40,390
theorem
250
00:25:45,440 --> 00:25:59,460
if ุงู„ V has dimension N then
251
00:25:59,460 --> 00:26:11,420
every set of ูุงุชุญ
252
00:26:11,420 --> 00:26:13,860
ุงู„ุจุงุจ
253
00:26:18,690 --> 00:26:26,650
ูŠุจู‚ู‰ FLV ู„ุฏูŠู‡ ู…ุฑุญู„ุฉ ููŠ ูƒู„ ุฌุฒุก ู…ู† ุงู„ุฃุดูŠุงุก
254
00:26:26,650 --> 00:26:33,390
ุงู„ู„ูŠู†ูŠุงุฑูŠุฉ ุงู„ุงู†ุฏุจู†ุฏู†ุชูŠุฉ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ
255
00:26:33,390 --> 00:26:38,530
ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ
256
00:26:38,530 --> 00:26:45,110
ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ
257
00:26:45,110 --> 00:26:46,910
ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ
258
00:26:46,910 --> 00:26:47,050
ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณ
259
00:26:47,050 --> 00:26:55,570
ุงู„ู„ูŠู…ูŠู†ุชุณ ุงู„ู„ูŠู…ูŠู†ุชุณexactly has exactly n elements
260
00:26:55,570 --> 00:26:58,750
ููŠู‡ุง
261
00:26:58,750 --> 00:27:05,370
n elements which is
262
00:27:05,370 --> 00:27:13,510
also a basis for
263
00:27:13,510 --> 00:27:13,810
v
264
00:28:58,730 --> 00:29:02,770
ู†ุฑุฌุน ู„ู†ุธุฑูŠุฉ ุงู„ุฃุฎูŠุฑุฉ ูˆ ู†ุฑู‰ ู…ุง ู‡ูˆ ุงู„ู…ู‚ุตูˆุฏ ู…ู†ู‡ุง
265
00:29:02,770 --> 00:29:07,130
ุงู„ู†ุธุฑูŠุฉ ุจุชู‚ูˆู„ ุงู„ letter V has dimension N ูŠุจู‚ู‰ ุงู†ุง
266
00:29:07,130 --> 00:29:11,230
ููŠู‡ ุนู†ุฏูŠ vector space ูˆ ุงู„ dimension ู„ู‡ ูŠุณุงูˆูŠ N
267
00:29:11,230 --> 00:29:17,540
ูŠุจู‚ู‰ ู…ุงูŠุฌุฏุด ุนุฏุฏ ุงู„ุนู†ุงุตุฑ ููŠ ุงู„ business ูŠุง ุจู†ุงุชุทูŠุจ
268
00:29:17,540 --> 00:29:21,700
ุชู…ุงู… then every set of linearly independent
269
00:29:21,700 --> 00:29:26,300
elements that span V has exactly N elements ูŠุจุฌู‰
270
00:29:26,300 --> 00:29:30,560
ุฃู†ุง ุจุชุฏุนูŠ ุงู† ุงู„ bases ุงู„ู„ูŠ ูŠุณุงูˆูŠ N ู„ูˆ ุฑูˆุญุช ู„ุฌูŠุช ุณุช
271
00:29:30,560 --> 00:29:35,300
ุนุฏุฏ ุนู†ุงุตุฑู‡ุง ูŠุณุงูˆูŠ N ูˆูƒุงู†ูˆุง linearly independent
272
00:29:35,300 --> 00:29:41,200
ูˆูƒู„ ูˆุงุญุฏ ูˆู„ุฏ ู„ูŠู‡ ุนู†ุงุตุฑ V ูŠุจุฌู‰ ู‡ุฐุง ุจู†ูุน ูƒู…ุงู† bases
273
00:29:41,200 --> 00:29:46,420
ูˆู„ุง ู„ุงุŸู…ุนู†ุงุชู‡ ู„ู„ vector space ุงู„ู„ู‰ ุนู†ุฏูŠ ููŠู‡ ูƒุงู…
274
00:29:46,420 --> 00:29:51,700
bases ูƒุชูŠุฑ ูŠุนู†ูŠ ู…ุงุนู†ุฏูŠุด ู…ุด bases ูˆุงุญุฏ ุนู†ุฏูŠ ูƒุชูŠุฑ ู…ู†
275
00:29:51,700 --> 00:29:55,400
ุงู„ bases ู‡ุฐู‡ ุชู…ุงู… ูŠุนู†ูŠ ุงู„ vector space ุงู„ู„ู‰ ูˆุงุญุฏ
276
00:29:55,400 --> 00:29:59,500
ู‚ุฏ ูŠูƒูˆู† ู„ู‡ two bases ุชู„ุงุชุฉ bases ุงุฑุจุนุฉ bases ุฎู…ุณุฉ
277
00:29:59,500 --> 00:30:04,360
bases ุงู„ุงู† ูƒู„ ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ elements ูŠุชุญู‚ู‚ ููŠู‡ุง
278
00:30:04,360 --> 00:30:08,590
ุดุฑุทุงู†ุงู„ุดุฑุท ุงู„ุฃูˆู„ ุฅู†ู‡ู… linearly independent
279
00:30:08,590 --> 00:30:13,490
elements ุงู„ุดุฑุท ุงู„ุซุงู†ูŠ ุฃูŠ ุนู†ุตุฑ ููŠ ุงู„ vector space
280
00:30:13,490 --> 00:30:17,450
ุฏูŠ ุจู†ู‚ุฏุฑ ู†ูˆู„ู‘ุจ ูˆุงุณุทุฉ ู‡ุฐู‡ ุงู„ุนู†ุงุตุฑ ุจูŠูƒูˆู†ูˆุง ู‡ุฏูˆู„
281
00:30:17,450 --> 00:30:22,030
bases ู„ู…ู†ุŸ ู„ู„ vector space ูˆุนุชู„ุงุฌ ุงู„ vector space
282
00:30:22,030 --> 00:30:27,330
ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ bases ุทูŠุจ ุฎู„ูŠู†ูŠ ุฃุณุฃู„ ูƒู…ุงู† ุณุคุงู„ ุงู„
283
00:30:27,330 --> 00:30:31,150
bases ุงู„ู…ุฎุชู„ูุฉ ู„ูˆ ุฃุฎุฏู†ุง two bases ู„ู„ vector space
284
00:30:31,150 --> 00:30:35,370
ู‡ู„ ุนุฏุฏ ุงู„ุนู†ุงุตุฑ ู‡ู†ุง ูŠุฎุชู„ู ุนู† ุนุฏุฏ ุงู„ุนู†ุงุตุฑ ู‡ู†ุงุŸ
285
00:30:35,590 --> 00:30:42,520
ุงู„ุนุฑุจูŠุฉุจุณ ุงู„ู„ูŠ ุจูŠุฎุชู„ู ู„ุง ูŠุฎุชู„ู ุชู…ุงู…ุง ู„ูŠุดุŸ ู„ุฅู† ุนุฏุฏ
286
00:30:42,520 --> 00:30:47,200
ุนู†ุงุตุฑ ุจูŠุฒุฒ ู‡ูˆ ุงู„ dimension ูŠุจู‚ู‰ ู‡ุฐุง ุงู„ dimension ูˆ
287
00:30:47,200 --> 00:30:50,300
ุงู„ุชุงู†ูŠ ูŠุจู‚ู‰ ูŠุนุทูŠู†ูŠ ู†ูุณ ุงู„ dimension ูŠุจู‚ู‰ ุงู„ุฃุชู†ูŠู†
288
00:30:50,300 --> 00:30:54,480
ุจุฏูˆู† ุฃู† ูŠูƒูˆู† ุฃูˆ ุงู„ุชู„ุงุชุฉ ุฃูˆ ุงู„ุฃุฑุจุนุฉ ุฃูˆ ุงู„ุฎู…ุณุฉ ุจูŠุฒุฒ
289
00:30:54,480 --> 00:30:59,120
ูƒู„ู‡ู… ููŠู‡ู… ู†ูุณ ุงู„ุนุฏุฏ ู…ู† ุงู„ุนู†ุงุตุฑ ูˆู„ู… ุฃู‚ูˆู„ ู†ูุณ
290
00:30:59,120 --> 00:31:03,700
ุงู„ุนู†ุงุตุฑ ู†ูุณ ุงู„ุนุฏุฏ ููŠ ุฎู…ุณุฉ ูŠุจู‚ู‰ ู‡ู†ุง ููŠ ุฎู…ุณุฉ ููŠ ุชุง
291
00:31:03,700 --> 00:31:07,200
ููŠ ุณุชุฉ ูŠุจู‚ู‰ ู‡ู†ุง ููŠ ุณุชุฉ ูˆ ู‡ูƒุฐุง
292
00:31:11,730 --> 00:31:17,030
ู‡ุฐุง ุงู„ู€ V ู„ูˆ ูƒุงู† ุงู„ dimension ู„ู‡ ูŠุณุงูˆูŠ N ูŠุจู‚ู‰ ุงูŠ
293
00:31:17,030 --> 00:31:21,370
ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ู€ linearly independent elements ู…ู† ุงู„ู€
294
00:31:21,370 --> 00:31:26,510
V ุงู„ู„ูŠ ุจุชูˆู„ุฏู„ูŠ ุงูˆ ุจุชุฌูŠุจู„ูŠ ุนู†ุงุตุฑ V has exactly N
295
00:31:26,510 --> 00:31:30,870
elements ููŠู‡ุง ุจุงู„ุถุจุท N elements which also is a
296
00:31:30,870 --> 00:31:35,180
basis ูˆู‡ุฐุง ุจูŠูƒูˆู‘ู„ ู„ูŠุจุงุฒุฒ ู„ู„ vector space V ู…ุนู†ุงู‡
297
00:31:35,180 --> 00:31:40,360
ุงู† ุงู„ vector space V ู„ู‡ ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ bases ูˆู„ูŠุณ
298
00:31:40,360 --> 00:31:48,460
ุจุงุฒุฒ ูˆุงุญุฏ ูู‚ุท ู„ุง ุบูŠุฑ ูƒู…ุง ุณู†ุฑู‰ ู…ู† ุฎู„ุงู„ ุงู„ุฃู…ุซู„ุฉ ุงู„ุงู†
299
00:31:48,460 --> 00:31:52,560
ุงุฎุฏุช ุงู„ vector space RN ุงู„ู„ูŠ ู‡ูˆ the set of all n
300
00:31:52,560 --> 00:31:57,040
tuples ู…ู† X1 ู„XN ูˆูƒู„ ุงู„ X ู‡ุฐูˆู„ are real number
301
00:31:57,040 --> 00:32:02,900
ุฑูˆุญุช ู…ู† ู‡ุฐูˆู„ ุงุฎุฏุช ู…ุฌู…ูˆุนุฉู‡ุฐู‡ ุงู„ู…ุฌู…ูˆุนุฉ ุนุฏุฏู‡ุง ูƒู…ุŸ
302
00:32:02,900 --> 00:32:08,880
ุนุฏุฏู‡ุง N E1 ุงู„ุญุฏ ุงู„ุฃูˆู„ูŠ ุจูˆุงุญุฏ ูˆุงู„ุจุงู‚ูŠ ุจุฒูŠุฑูˆ E2 ุงู„ุญุฏ
303
00:32:08,880 --> 00:32:12,040
ุงู„ุชุงู†ูŠ ุจูˆุงุญุฏ ูˆุงู„ุจุงู‚ูŠ ุงู„ู„ูŠ ุฌุงุจู„ู‡ ูˆ ุงู„ู„ูŠ ุจุนุฏู‡ ุจุฒูŠุฑูˆ
304
00:32:12,040 --> 00:32:16,100
E3 ุงู„ุญุฏ ุงู„ุชุงู†ูŠ ุจุฒูŠุฑูˆ ุงู„ู„ูŠ ุฌุงุจู„ู‡ ูˆ ุงู„ู„ูŠ ุจุนุฏู‡ ุจุฒูŠุฑูˆ
305
00:32:16,100 --> 00:32:20,860
ู„ุบุงูŠุฉ EN ูƒู„ู‡ ุจุฒูŠุฑูˆ ู…ุง ุนุฏุง ุงู„ุญุฏ ุงู„ุฃุฎูŠุฑ ุจุฌุฏุงุด ุจูˆุงุญุตุฉ
306
00:32:22,260 --> 00:32:28,300
ุจูŠู‚ูˆู„ ูŠุจูŠู† ู„ูŠ ุงู† ู‡ุฏูˆู„ ุจูŠูƒูˆู†ูˆู„ูŠ basis ู„ู„ RN ุนุดุงู†
307
00:32:28,300 --> 00:32:32,870
ูŠูƒูˆู†ูˆู„ูŠ basis ุจุฏูŠ ุงุทุจู‚ ุดุฑุทูŠู†ุงู„ุดุฑุท ู„ูˆ ุชุซุจุช ุงู†ู‡ู…
308
00:32:32,870 --> 00:32:37,030
linearly independent ุงุญู†ุง ุจู†ุซุจุช ุงู†ู‡ู… linearly
309
00:32:37,030 --> 00:32:40,870
independent ุจุงูƒุซุฑ ู…ู† ุทุฑูŠู‚ุฉ ูƒูˆู†ุณุชุงู†ุฏ ููŠ ุงู„ุฃูˆู„
310
00:32:40,870 --> 00:32:43,370
ูƒูˆู†ุณุชุงู†ุฏ ููŠ ุงู„ุชุงู†ูŠ ูƒูˆู†ุณุชุงู†ุฏ ููŠ ุงู„ุชุงู†ูŠ ูˆู†ุณุงูˆูŠ
311
00:32:43,370 --> 00:32:48,110
ุจุงู„ุฒูŠุฑูˆ ูˆู†ุซุจุช ุงู† ุงู„ูƒูˆู†ุณุชุงู†ุฏ ู‡ุฐูˆู„ ูƒู„ู‡ู… ุจุฃุณูุงุฑ ู…ุธุจูˆุท
312
00:32:48,110 --> 00:32:52,510
ู‡ูŠูƒ ุทุฑูŠู‚ุฉ ุซุงู†ูŠุฉ ุงู†ุง ุจุฏูŠ ุงุฌูŠุจ ุงู„ determinant ู„ู‡ู… ู„ูˆ
313
00:32:52,510 --> 00:32:55,810
ุทู„ุนุช ุงู„ determinant ุงู†ู‡ู… ู„ุง ูŠุณุงูˆูŠ ุฒูŠุฑูˆ ูŠุจู‚ู‰ ุฏูˆู„
314
00:32:55,810 --> 00:33:00,770
ู…ุงู„ู‡ู…Linearly Independent ู…ุด ู‡ูŠูƒ ุงุฎุฏู†ุง ู†ุธุฑูŠุฉ ุจูŠุฏ
315
00:33:00,770 --> 00:33:06,190
ุงู„ู…ู‚ุงู„ ู…ู…ุชุงุฒ ุฌุฏุง ูŠุจู‚ู‰ ุงู†ุง ุจุฏูŠ ุงุฌู„ู‰ solution ุจุฏูŠ
316
00:33:06,190 --> 00:33:11,270
ุงุฌู„ู‰ ุงู„ุฎุงุตูŠุฉ ุงู„ุงูˆู„ู‰ ุจุฏูŠ ุงุซุจุชู„ู‡ ุงู† ู‡ุฏูˆู„ linearly
317
00:33:11,270 --> 00:33:18,240
independent ูŠุจู‚ู‰ ุจุฏูŠ ุงุฎุฏู„ู‡ determinant ู„ู…ูŠู†ู„ู„ู€ E1
318
00:33:18,240 --> 00:33:25,080
ูˆุงู„ู€ E2 ูˆ ู„ุบุงูŠุฉ ุงู„ู€ EN ูŠุจู‚ู‰ ู‡ุฐุง ุงู„ูƒู„ุงู… ุจุฏู‡ ูŠุณุงูˆูŠ
319
00:33:25,080 --> 00:33:31,660
ู‡ุฐุง ุงู„ู…ุญุฏุฏ E1 ุจุฏูŠ ุงูƒุชุจู‡ ุนู„ู‰ ุดูƒู„ ุนู…ูˆุฏ 1ุŒ 0 ูˆุถู„ ู…ุงุดูŠ
320
00:33:31,660 --> 00:33:40,090
ู„ุบุงูŠุฉ ุงู„ู€ 0 E2ุŒ 0ุŒ 1ุŒ 0 ูˆุถู„ ู…ุงุดูŠ ู„ุบุงูŠุฉ ุงู„ู€ 0ูˆ ู‡ูƒุฐุง
321
00:33:40,090 --> 00:33:45,090
ุงู„ู„ูŠ ุจุนุฏู‡ zero zero ูˆุงุญุฏ ูˆ ู†ุธู„ ู…ุงุดูŠู„ ู„ุบุงูŠุฉ ุงู„ zero
322
00:33:45,090 --> 00:33:50,810
ู†ุธู„ ู…ุงุดูŠู„ ู„ุบุงูŠุฉ ุงู„ zero ูˆ ู‡ู†ุง zero ูˆ ู‡ู†ุง zero ูˆ
323
00:33:50,810 --> 00:33:56,670
ู†ุธู„ ู…ุงุดูŠู„ ู„ุบุงูŠุฉ ูƒุฏู‡ุŸ ู„ุบุงูŠุฉ ุงู„ ูˆุงุญุฏ ุทุจ ู‡ุฐุง ู…ุด ู‡ูˆ
324
00:33:56,670 --> 00:34:02,450
ู…ุญุฏุฏ ู„ู…ุตูˆู ุงู„ูˆุญุฏุฉ ูˆู„ุง ู„ุงุŸ ูŠุจู‚ู‰ ู‡ุฐุง ู‡ูˆ determinant
325
00:34:02,450 --> 00:34:12,860
ู„ู„ I Nู…ุญุฏุฏ ูŠุญุตู„ ุถุฑุจู‡ ูˆุงุญุฏ ููŠ ูˆุงุญุฏ ุจูˆุงุญุฏ ูƒู„ู‡ ู…ุงู„ู‡
326
00:34:12,860 --> 00:34:16,020
ู„ุง ูŠุณุงูˆูŠ ุฒูŠุฑูˆ ุงู„ู…ุนู†ุงุชู‡ ู‡ุฏูˆู„ are linearly
327
00:34:16,020 --> 00:34:23,820
independent ูŠุจู‚ู‰ ู‡ู†ุง ุณุง ุงูŠ ูˆุงุญุฏ ูˆ ุงูŠ ุงุชู†ูŠู† ูˆ ู„ุบุงูŠุฉ
328
00:34:23,820 --> 00:34:31,540
ุงู„ EN are linearly independent vectors in RN
329
00:34:36,590 --> 00:34:43,170
ุงู„ู†ู‚ุทุฉ ุงู„ุฃูˆู„ู‰ ุงู„ู„ู‰ ุนู†ุฏู†ุง ุจุฏู‰ ุงุซุจุช ุงู† ู‡ุฏูˆู„ ุจูˆู„ุฏูˆู„ู‰
330
00:34:43,170 --> 00:34:48,410
ู…ูŠู† ุฌู…ูŠุน ู†ุงุณุฑ ุงู„ vector space V ุงูˆ ุงูŠ element ููŠ
331
00:34:48,410 --> 00:34:52,360
ุงู„ vector space V ู‡ูˆ linear combination ู…ู† ู…ูŠู†ู…ู†
332
00:34:52,360 --> 00:35:00,260
ุงู„ vectors ู‡ุฐูˆู„ ูƒูˆูŠุณ ูุจุฌูŠ ุจู‚ูˆู„ู‡ let x1 ูˆ x2 ูˆ
333
00:35:00,260 --> 00:35:05,400
ู„ุบุงูŠุฉ xn ู…ูˆุฌูˆุฏุฉ ููŠ ุงู„ RN then
334
00:35:07,840 --> 00:35:12,720
ุจุฏูŠ ุงูƒุชุจ ุงู„ element ู‡ุฐุง ุนู„ู‰ ุงู„ุดูƒู„ ุงู„ุชุงู„ูŠ X1 ูˆ X2 ูˆ
335
00:35:12,720 --> 00:35:20,380
ู„ุบุงูŠุฉ XN ุจุฏู‡ ูŠุณุงูˆูŠ ุงู‡ ุงู‡ ุจู‚ุฏุฑ ุงู‚ูˆู„ X1 ูˆ ุงู„ุจุงู‚ูŠ ูƒู„ู‡
336
00:35:20,380 --> 00:35:29,200
ุจุงุณูุงุฑ ุฒุงุฆุฏ Zero X2 Zero ูˆ ุงู„ุจุงู‚ูŠ ูƒู„ู‡ ุจุงุณูุงุฑ ุฒุงุฆุฏ
337
00:35:29,200 --> 00:35:35,100
ูˆ ู†ุถู„ ู…ุงุดูŠูŠู† ู„ุบุงูŠุฉ ู…ุง ู†ูˆุตู„ ู„ Zero Zero Zero ูˆ
338
00:35:35,100 --> 00:35:42,080
ู„ุบุงูŠุฉ XNุจู†ูุน ู‡ูŠูƒ ูˆู„ุง ู„ุงุŸ ู„ูˆ ุฌูŠุช ุฌุงู…ุนุฉ ุงู„ู…ุฑูƒุจุฉ ู„ูˆู„ุง
339
00:35:42,080 --> 00:35:47,190
X ูˆุงุญุฏ ูˆุงู„ุจุงู‚ูŠ ุงู„ูƒู„ ุจูŠุตูุฑ ูŠุจู‚ู‰ X ูˆุงุญุฏุงู„ู„ูŠ ุจุนุฏู‡ 0
340
00:35:47,190 --> 00:35:52,130
ู‡ู†ุง x2 ุงู„ู„ูŠ ุจู‚ู‰ ูŠุจู‚ู‰ ุฃุณูุงุฑูŠ ุจู€x2 ูŠุจู‚ู‰ ูƒุชุงุจุฉ ู‡ุฐุง ุงู„
341
00:35:52,130 --> 00:35:57,450
element ุนู„ู‰ ุดูƒู„ ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ elements ุฅุฐุง ุจู‚ุฏุฑ
342
00:35:57,450 --> 00:36:09,050
ุฃู‚ูˆู„ ู‡ุฐุง ุงู„ูƒู„ุงู… ูŠุณูˆู‰ x1 ููŠ 1 x1 ููŠ 1 0 0 ูˆ ู„ุบุงูŠุฉ 0
343
00:36:10,130 --> 00:36:20,210
X2 ููŠ 0 ูˆ 1 ูˆ 0 ูˆ ู„ุบุงูŠุฉ ุงู„ู€ 0 ุฒุงุฆุฏ ุฒุงุฆุฏ XN ููŠ 0 ูˆ
344
00:36:20,210 --> 00:36:25,870
0 ูˆ ู†ุธู„ ู…ุงุดูŠูŠู† ู„ุบุงูŠุฉ ุงู„ 1 ุฎุฏู†ุง ุนุงู…ู„ ู…ุดุชุฑูƒ ูƒุจุฑุฑ
345
00:36:25,870 --> 00:36:33,120
ุชู…ุงู…ุŸ ุทุจ ุงู„ุฌุซ ู‡ุฏู‰ ุนุจุงุฑุฉ ุนู† ู…ูŠู†ุŸE1 ูŠุจู‚ู‰ ู‡ุฐุง ุงู„ูƒู„ุงู…
346
00:36:33,120 --> 00:36:43,180
ุจุฏูŠ ูŠุนุทูŠู†ูŠ X1E1 X2E2 ูˆ ู„ุบุงูŠุฉ XNEN ุงูŠู‡ ูŠุนู†ูŠ ู…ุนู†ู‰
347
00:36:43,180 --> 00:36:48,120
ู‡ุฐุง ุงู„ูƒู„ุงู… ุงู† ุงูŠ element ู…ูˆุฌูˆุฏ ููŠ ุงู„ุงุฑ ุงู† ู‡ูˆ
348
00:36:48,120 --> 00:36:55,220
linear combination ู…ู† ู…ู† ู…ู† ู‡ุฐูˆู„ ูŠุจู‚ู‰ ู‡ู†ุง every
349
00:36:55,220 --> 00:36:57,640
element
350
00:37:00,720 --> 00:37:08,420
ู†ุฑู† is a linear combination
351
00:37:08,420 --> 00:37:16,240
of
352
00:37:16,240 --> 00:37:24,660
E1 ูˆ E2 ูˆ ู„ุบุงูŠุฉ Enู…ุนู†ุงุชู‡ ุงู„ vectors ู‡ุฏูˆู„ ู…ุง ู„ู‡ู…
353
00:37:24,660 --> 00:37:35,780
span RN ูŠุนู†ูŠ ุจูˆุถูˆู„ูŠ ุงู„ RN ูŠุจู‚ู‰ ู‡ู†ุง that isุฃูŠ ุฃู†
354
00:37:35,780 --> 00:37:46,660
ุงู„ู€ E1 ูˆุงู„ู€ E2 ูˆุงู„ู€ EN ุฃุณุจุงู† ู…ูŠู† ุฃุณุจุงู† RN ูŠุจู‚ู‰
355
00:37:46,660 --> 00:37:51,260
ู‡ุฐูˆู„ ุจูŠูˆู„ุฏูˆู„ูŠ RN ุฅูŠุด ู…ุนู†ู‰ ู‡ุฐุง ุงู„ูƒู„ุงู… ุฅู† ู‡ุฐูˆู„
356
00:37:51,260 --> 00:37:54,880
ุจูŠุดูƒู„ูˆู„ูŠ ู…ูŠู†ุŸ Bases ู„ู„ู€ RN
357
00:37:58,310 --> 00:38:10,030
ุงู„ู„ูŠ ู‡ูˆ ุงู„ E1 ูˆ ุงู„ E2 ูˆ ุงู„ AN is a basis for RN
358
00:38:10,030 --> 00:38:16,180
ุชุนุฑููˆุง ุฅูŠุด ุจูŠุณู…ูˆู‡ุง ุฏู‡ ูŠุง ุจู†ุงุชุŸุจุณู…ูˆู„ู‡ standard
359
00:38:16,180 --> 00:38:22,100
basis ูŠุนู†ูŠ ุงู„ basis ุงู„ู…ุชุนุฑู ุนู„ูŠู‡ ุนู†ุฏ ูƒู„ ุงู„ุนู„ู…ุงุก
360
00:38:22,100 --> 00:38:25,980
ูˆู„ุง ุนู†ุฏ ูƒู„ ุงู„ุฏูˆู„ ูˆู„ุง ุนู†ุฏ ูƒู„ ุงู„ู†ุงุณ ูŠุจู‚ู‰ ู‡ุฐุง called
361
00:38:25,980 --> 00:38:35,600
the standard basis of RM ูŠุจู‚ู‰ ู‡ุฐุง basis called the
362
00:38:35,600 --> 00:38:40,740
standard basis
363
00:38:40,740 --> 00:38:42,760
for
364
00:38:45,230 --> 00:38:50,030
RN ุงูŠุด standard basis for ุงู†ุŸ ูŠุนู†ูŠ ููŠ basis ุบูŠุฑู‡ุŸ
365
00:38:50,030 --> 00:39:05,090
ุงู‡ ููŠ ุบูŠุฑู‡ ุจุณ ู…ุด ุนู„ู‰ ู‡ุงู„ุดูƒู„ ู‡ุฐุง ุทุจ
366
00:39:05,090 --> 00:39:08,890
ู„ูˆ ู„ุฌูŠุช basis ุงุฎุฑ ูŠุง ุจู†ุงุฏูŠ ูƒุฏู‡ุด ุจุฏูŠูƒูˆู† ุนุฏุฏ ุนู†ุงุตุฑู‡ุŸ
367
00:39:10,150 --> 00:39:14,110
ู† ู…ุซู„ ู‡ุฐุง ุจุงู„ุถุจุท ุชู…ุงู…ุง ู…ุงุฏุงู… ู†ุณุชุฎุฏู… ุงู„ basis ุนุฏุฏ
368
00:39:14,110 --> 00:39:21,630
ุนู†ุงุตุฑู‡ ู† ูŠุจู‚ู‰ ุงูŠ basis ุงุฎุฑ ุนุฏุฏ ุนู†ุงุตุฑู‡ ูŠุณุงูˆูŠ ู† ุทูŠุจ
369
00:39:21,630 --> 00:39:26,150
ุฎู„ูŠู†ูŠ ุงุฎุฏ special cases ู…ู† ู‡ุฐุง ุงู„ู…ุซุงู„ ูŠุนู†ูŠ ู†ุตุบุฑ
370
00:39:26,150 --> 00:39:31,430
ุดูˆูŠุฉ ูˆ ู†ุดุชุบู„ ุนู…ู„ ุดูˆูŠุฉ ูŠุจู‚ู‰ ุจุฏู‡ุฌุฉ ุงู‚ูˆู„ู‡ special
371
00:39:31,430 --> 00:39:38,450
cases of
372
00:39:44,360 --> 00:39:52,180
ุฃูˆู„ ูˆุงุญุฏุฉ ู„ูˆ ุฃุฎุฏุช ุงูŠ ูˆุงุญุฏ ุจุฏู‡ ูŠุณูˆูŠ ูˆุงุญุฏ ูˆุฒูŠุฑูˆ ูˆ ุงูŠ
373
00:39:52,180 --> 00:40:01,760
ุงุชู†ูŠู† ุจุฏู‡ ูŠุณูˆูŠ ุฒูŠุฑูˆ ูˆูˆุงุญุฏ ู‡ุฏูˆู„ are the standard
374
00:40:01,760 --> 00:40:08,760
basis of R2
375
00:40:10,190 --> 00:40:19,970
ู…ุธุจูˆุท ู‡ูƒุŸ ุทูŠุจ ู„ูŠุดุŸ ู„ุฃู† ุฃูŠ element x1 ูˆ x2 ุจู‚ุฏุฑ
376
00:40:19,970 --> 00:40:23,590
ุงูƒุชุจู‡ ุนู„ู‰ ุตูŠุบุฉ linear combination ู…ู† ุงุชู†ูŠู† ู‡ุฏูˆู„
377
00:40:23,590 --> 00:40:32,030
ูŠุนู†ูŠ x1 x2 ุจู‚ุฏุฑ ุงูƒุชุจ x1 ููŠ 1 ูˆ 0 ุฒุงุฏ x2 ููŠ 0 ูˆ 1
378
00:40:32,030 --> 00:40:35,690
ุตุญูŠุญ ูˆู„ุง ู„ุฃุŸ ุงุฐุง ูƒุชุจุช linear combination ู…ู† ุงุชู†ูŠู†
379
00:40:36,000 --> 00:40:40,580
ู‡ุฏูˆู„ linearly dependent ูˆู„ุง linearly independentุŸ
380
00:40:40,580 --> 00:40:45,540
ูŠุนู†ูŠ ู‡ู„ ูˆุงุญุฏ ููŠู‡ู… ู…ุถุงุนูุงุช ุงู„ุขุฎุฑุŸ ู„ุฃ ุนู…ุฑู‡ ู…ุง ู‡ูŠุญุตู„ุŒ
381
00:40:45,540 --> 00:40:50,520
ุชู…ุงู…ุŸ ูŠุจู‚ู‰ ุงุชู†ูŠู† are linearly independentุŒ ู…ุฏุงู…
382
00:40:50,520 --> 00:40:53,460
linearly independent ุจูŠุดูƒู„ูˆุง ู„ูŠู‡ basis ูˆุงู†ุช ู‡ู†ุง
383
00:40:53,460 --> 00:40:57,480
ู…ู†ู‡ู…ุŒ ุจู‚ู‰ ุงู„ู„ู‡ ู‡ุงุชูŠู„ูŠ ูˆุฑู‚ุฉ ู…ู† ุฏูุชุฑูƒ ู…ู† ุนู†ุฏูƒ ู‡ู†ุงูƒุŒ
384
00:40:57,480 --> 00:40:58,760
ุนูŠู†ูƒ ุงู„ู„ู‡ ุงู„ู…ุฑุฉ
385
00:41:02,820 --> 00:41:05,500
ูŠุง ุงู„ู„ู‡ ูƒู„ ูˆุงุญุฏุฉ ุงุณู…ู‡ุง ูˆุฑู‚ู…ู‡ุง ุงู„ุฌุงู…ุนูŠุฉ ูˆุงู†ุช ูˆุฑู‚ู‡ุง
386
00:41:05,500 --> 00:41:10,060
ู…ู† ุนู†ุฏูƒ ูƒู…ุงู† ู„ู„ูŠ ูˆุฑุงูƒูŠ ูƒู„ ูˆุงุญุฏุฉ ุงุณู…ู‡ุง ูˆุฑู‚ู…ู‡ุง
387
00:41:10,060 --> 00:41:16,140
ุงู„ุฌุงู…ุนูŠุฉ ุทูŠุจ ูŠุจู‚ู‰ ุจุฏู†ุง ู†ูŠุฌูŠ ู†ุงุฎุฏ ุญุงู„ุงุช ุฎุงุตุฉ ู…ู† ู…ูŠู†
388
00:41:16,140 --> 00:41:22,020
ู…ู† ู‡ุฐุง ุงู„ุงู† ู‡ุฏูˆู„ ุจูŠู…ุซู„ูˆุง ุงุตุฏุงุฑ ู…ุฑุจูŠุฒุฒ ู„ู„ R2 ู‚ุฏุงุด
389
00:41:22,020 --> 00:41:28,240
ุงู„ dimension ู„ู„ R2ุŸ ู‚ุฏุงุดุŸ ุงุชู†ูŠู† ู…ุง ู‡ูŠู‡ู… ู…ุด ุบูŠุฑู‡ู…
390
00:41:28,240 --> 00:41:30,920
ุชู…ุงู… ูŠุจู‚ู‰ ู‡ุฏูˆู„ ุจูŠุณุชุฎุฏู…ูˆุง ุงู„
391
00:41:34,050 --> 00:41:35,450
ุงู„ู…ุตุทู„ุญ
392
00:41:38,610 --> 00:41:45,810
ุงุฑุชูˆ ุงุฒ ุงุชู†ูŠู† ุทูŠุจ ู†ู‚ุทุฉ ุซุงู†ูŠุฉ ู„ูˆ ุฌูŠุช ุงู‚ูˆู„ ู„ูƒ ุง ูˆุงุญุฏ
393
00:41:45,810 --> 00:41:53,730
ูŠุณุงูˆูŠ ูˆุงุญุฏ ูˆุฒูŠุฑูˆ ูˆุฒูŠุฑูˆ ูˆ ุงุชู†ูŠู† ูŠุณุงูˆูŠ ุฒูŠุฑูˆ ูˆุงุญุฏ
394
00:41:53,730 --> 00:42:01,030
ูˆุฒูŠุฑูˆ ุงู‚ูˆู„ ู„ูƒ ุง ุชู„ุงุชุฉ ูŠุณุงูˆูŠ ุฒูŠุฑูˆ ูˆุฒูŠุฑูˆ ูˆุงุญุฏ ุจุงู„ุดูƒู„
395
00:42:01,030 --> 00:42:05,890
ุงู„ู„ูŠ ุนู†ุฏู†ุง ู‡ุฏูˆู„ ุจุฑุถู‡ ู‡ุฏูˆู„ are standard
396
00:42:07,400 --> 00:42:22,780
Bases for R3 and R3 has dimension 3
397
00:42:22,780 --> 00:42:29,400
ุทุจ ุงูŠุด ุฑุงูŠูƒ ุงุฌูŠุจูƒ ุจูŠุฒุฒ ุบูŠุฑ ู‡ุฏูˆู„ ูˆ ุงูƒุชุฑ ู…ุด ูˆุงุญุฏ ูˆู„ุง
398
00:42:29,400 --> 00:42:36,040
ุงุชู†ูŠู† ุฎุฏูŠ ุงู„ู…ู„ุงุญุธุฉ ู‡ุฐู‡ also ูˆ ูƒุฐู„ูƒ
399
00:42:47,970 --> 00:42:58,930
ูƒู„ ู…ู† ุงู„ู…ุฌู…ูˆุนุงุช ุงู„ุชุงู„ูŠุฉ is a basis for R2
400
00:43:03,760 --> 00:43:10,060
ุงู„ู€ element ูˆุงุญุฏ ูˆ ุชู„ุงุชุฉ ูˆ ุงู„ element ูˆุงุญุฏ ูˆ ุณุงู„ุจ
401
00:43:10,060 --> 00:43:17,880
ูˆุงุญุฏ ุฎุฏ ู…ุฌู…ูˆุนุฉ ุชุงู†ูŠุฉ ุงู„ element ูˆุงุญุฏ ูˆ ุชู„ุงุชุฉ ูˆ ุงู„
402
00:43:17,880 --> 00:43:26,410
element ุชุงู†ูŠ ุณุงู„ุจ ุงุชู†ูŠู† ูˆ ุณุชุฉ ุฎุฏ ู…ุฌู…ูˆุนุฉ ุชุงู„ุชุฉุฃุชู†ูŠู†
403
00:43:26,410 --> 00:43:35,330
ูˆ ูˆุงุญุฏ ูˆ ุชู„ุงุชุฉ ูˆ ุฒูŠุฑูˆ ุฎุฏ ู…ุฌู…ูˆุนุฉ ุฑุงุจุนุฉ ูƒู…ุงู† ุงู„ู„ูŠ ู‡ูˆ
404
00:43:35,330 --> 00:43:43,770
ุงุชู†ูŠู† ูˆ ุณุงู„ู ูˆุงุญุฏ ูˆ ุณุงู„ุจูŠ ุงุชู†ูŠู† ูˆ ุงุชู†ูŠู† ูƒู„ู‡ู… ุฏูˆู„
405
00:43:43,770 --> 00:43:45,550
ู…ุนุงู‡ู… because
406
00:43:56,630 --> 00:44:05,650
ู„ุฃู† ุนู„ู‰ ุณุจูŠู„ ุงู„ู…ุซุงู„ V1
407
00:44:05,650 --> 00:44:12,010
== 1.3 V2
408
00:44:12,010 --> 00:44:24,410
== 1.1 V2 == 1.3 V2 == 1.3 V2
409
00:44:24,410 --> 00:44:30,290
== 1.3each one is
410
00:44:30,290 --> 00:44:37,750
not multiple of
411
00:44:37,750 --> 00:44:55,170
the other ู…ูˆุงุด ู…ุถุงุนูุงุช ุงู„ุขุฎุฑ and the dimension of
412
00:44:56,100 --> 00:44:59,020
ุงุฑุชูˆ ุงุฒ ุชูˆ
413
00:45:30,070 --> 00:45:35,850
ุฎู„ู‘ูŠู†ูŠ ุฃุฎุจุฑูƒ ุงู† ุงู†ุง ุงุญู†ุง ุจู†ุงุฎุฏ ุจุนุถ ุงู„ุญุงู„ุงุช ุงู„ุฎุงุตุฉ
414
00:45:35,850 --> 00:45:41,790
ู…ู† ุงู„ุงุฑ ุงู† ุทุจุนุง ู‚ู„ู†ุง ุจู†ุงุฎุฏ ุงู„ุญุงู„ุฉ ุงู„ุฎุงุตุฉ ุงู„ุฃูˆู„ู‰ ู„ูˆ
415
00:45:41,790 --> 00:45:47,650
ุฃุฎุฏ ุงู„ elements E1 ู‡ูˆ ูˆุงุญุฏ ูˆ E2 ู‡ูˆ ุฒูŠุฑูˆ ูˆ ูˆุงุญุฏ
416
00:45:47,650 --> 00:45:52,130
ูŠุจู‚ู‰ ุงุชู†ูŠู† ู‡ุฏูˆู„ are linearly independent ู„ุฃู† ูˆู„ุง
417
00:45:52,130 --> 00:45:57,530
ูˆุงุญุฏ ููŠู‡ู… ู‡ูˆ ู…ุถุงุนูุงุช ุงู„ุขุฎุฑูŠุจู‚ู‰ ู„ู‡ุงุฏูˆู„ linearly
418
00:45:57,530 --> 00:46:02,330
independent ู‡ุฏูˆู„ ุจูŠูƒูˆู†ูˆุง ู„ู„ูŠ standard bases ู„ู…ูŠู†
419
00:46:02,330 --> 00:46:06,470
ู„ุงุฑุชูˆ ู„ุฅู† ุงุญู†ุง ุชูˆ ููŠ ุงู„ู…ุซุงู„ ุงู„ู„ูŠ ู‚ุจู„ู‡ ุฃุซุจุชู†ุงู‡ู… ู„ูˆ
420
00:46:06,470 --> 00:46:10,890
ูƒุงู† ูƒู„ ูˆุงุญุฏ ููŠ N ู…ู† ุงู„ู…ุฑุงูƒุจุงุช ุฅุฐุง ุงู„ุญุงู„ุฉ ุฎุงุตุฉ ู„ูˆ
421
00:46:10,890 --> 00:46:15,650
ุฃุฎุฏุช ุฌุฏู‡ุด ุจุณ ู…ุฑุงูƒุจุชูŠู† ูŠุจู‚ู‰ ู‡ุฏูˆู„ vectors ูŠู…ุซู„ูˆุง ู„ู„ูŠ
422
00:46:15,650 --> 00:46:22,090
standard bases ู„ู…ูŠู† ู„ุงุฑุชูˆ ูˆู‡ุฐุง ุจูŠุนุทูŠู†ุง ุงู† ุงู„
423
00:46:22,090 --> 00:46:27,230
dimension ู„ุงู„ู€ vector space R2 ู‡ูˆ ุฌุฏุงุด ุงุชู†ูŠู† ุจุนุฏ
424
00:46:27,230 --> 00:46:32,310
ุฐู„ูƒ ู„ูˆ ุฃุฎุฏุช ุงู„ู€ E1 ูŠุชูƒูˆู† ู…ู† ุซู„ุงุซ ู…ุฑูƒุจุงุช 100
425
00:46:32,310 --> 00:46:39,670
ูˆุงู„ุชุงู†ูŠ 010 ูˆุงู„ุชุงู„ูŠ 001 ูŠุจู‚ู‰ ู‡ุฐูˆู„ ูƒู…ุงู† linearly
426
00:46:39,670 --> 00:46:45,130
independent ู„ุฃู† ูˆู„ุง ูˆุงุญุฏ ููŠู‡ู… ู…ุถุงุนูุงุช ุงู„ุซุงู†ูŠ ุจุฑุถู‡
427
00:46:45,130 --> 00:46:48,870
ู‡ุฐูˆู„ standard basis ู„ู…ูŠู† ู„ู„ู€ R3 ูˆุงู„ู€ R3 ุงู„
428
00:46:48,870 --> 00:46:56,270
dimension ู„ู‡ ูŠุณุงูˆูŠ 3ุฃุญู†ุง ุจู†ู‚ูˆู„ ู‡ุฏูˆู„ ู„ูŠู‡ standard
429
00:46:56,270 --> 00:47:01,970
basis ูŠุนู†ูŠ ู‡ู„ ู‡ู†ุงูƒ basis ุฃุฎุฑู‰ุŒ ุงู„ุฅุฌุงุจุฉ ู†ุนู…ุŒ ู‡ู†ุงูƒ
430
00:47:01,970 --> 00:47:06,590
ู…ุฌู…ูˆุนุฉ ูƒุซูŠุฑุฉ ู…ู† ุงู„ basisุŒ ู…ุด ุน ุฌุฏ ู‡ุฏูˆู„ุŒ ู„ูˆ ูƒู…ุงู†ุŒ
431
00:47:06,590 --> 00:47:10,230
ุจุณ ุงุญู†ุง ู‡ุฏูˆู„ ุฌูŠุจู†ุงู‡ู… ุนู„ู‰ ุณุจูŠู„ ุงู„ู…ุซุงู„ุŒ ู„ูˆ ุฌุงุช
432
00:47:10,230 --> 00:47:16,690
ู„ู„ู…ุฌู…ูˆุนุฉ ู‡ุฐู‡ุŒ ูŠุจู‚ู‰ ุทู„ุน ููŠ ู‡ุฏูˆู„ ุงุชู†ูŠู†ุŒ ู‡ู„ ูˆุงุญุฏ ููŠู‡
433
00:47:16,690 --> 00:47:22,090
ู…ุถุงุนูุงุช ุงู„ุชุงู†ูŠุŸู„ุฃ ู‡ุฏูˆู„ ู‡ู„ ูˆุงุญุฏ ููŠู‡ู… ู…ุถุงุนูุงุช
434
00:47:22,090 --> 00:47:27,110
ุงู„ุชุงู†ูŠุฉ ู„ุฃ ู‡ุฏูˆู„ ููŠ ูˆุงุญุฏ ููŠู‡ู… ู…ุถุงุนูุงุช ุงู„ุชุงู†ูŠุฉ ูŠุนู†ูŠ
435
00:47:27,110 --> 00:47:31,550
ู„ูˆ ุถุฑุจุช ู‡ุฐุง ููŠ ุฑู‚ู… ุจูŠุทู„ุน ู‡ุฐุง ู…ุงุนู†ุฏูŠุด ู‡ู„ ู‡ุฐุง
436
00:47:31,550 --> 00:47:36,250
ู…ุถุงุนูุงุช ู‡ุฐุง ุจุฑุถู‡ ู„ุฃ ูŠุจู‚ู‰ ูˆู„ุง ูˆุงุญุฏ ููŠู‡ู… ู…ุถุงุนูุงุช
437
00:47:36,250 --> 00:47:40,730
ุงู„ุชุงู†ูŠุฉ ุทูŠุจ ู…ู…ุชุงุฒ ูŠุจู‚ู‰ ู‡ุฏูˆู„ linearly independent
438
00:47:40,730 --> 00:47:46,270
ุตุญูŠุญ ุทูŠุจ ุงู„ vector space ู‡ุฐุง ุฌุฏุงุด ุงู„ู„ูŠ ุงู„ bases ู„ู‡
439
00:47:48,660 --> 00:47:54,600
ุฅุฐุง ู‡ุฐุง ุจู†ูุน ูŠูƒูˆู† basis ู„ุฃู† ุงู„ dimension ู„ู‡ ูŠุณูˆู‰ 2
440
00:47:54,600 --> 00:47:58,340
ูˆู‡ูŠ ุฌุจุช ู„ู‡ 2 linearly independent of L ู…ุซู„ุง
441
00:47:58,340 --> 00:48:02,580
ุงู„ู†ุธุฑูŠุฉ ุงู„ุฃุฎูŠุฑุฉ ุจุชู‚ูˆู„ ู„ูŠ ูƒู„ ุงู„ basis ููŠู‡ู… ู†ูุณ
442
00:48:02,580 --> 00:48:08,140
ุงู„ุนุฏุฏู…ู† ุงู„ุนู†ุงุตุฑ ุชู…ุงู… ูŠุจู‚ู‰ ุงู„ุนู†ุงุตุฑ ู‡ุฐูˆู„ linearly
443
00:48:08,140 --> 00:48:13,440
independent ูˆุนุฏุฏู‡ู… ูŠุณุงูˆูŠ ุงุชู†ูŠู† ุงู„ู„ูŠ ู‡ูˆ ุงู„
444
00:48:13,440 --> 00:48:16,940
dimension ู„ู„ vector space ูŠุจู‚ู‰ ู‡ุฐูˆู„ ูŠู…ุซู„ูˆู† ุงู„ main
445
00:48:16,940 --> 00:48:23,260
bases ูŠุจู‚ู‰ ู‡ุฐูˆู„ E1 ูˆE2 bases ู„ุฃุนู„ู‰ ุงุชู†ูŠู† ู‡ุฐูˆู„ ุจุฑุถู‡
446
00:48:23,260 --> 00:48:26,960
bases ู„ุฃุนู„ู‰ ุงุชู†ูŠู† ู‡ุฐูˆู„ bases ู„ุฃุนู„ู‰ ุงุชู†ูŠู† ู‡ุฐูˆู„
447
00:48:26,960 --> 00:48:30,320
bases ู„ุฃุนู„ู‰ ุงุชู†ูŠู† ู‡ุฐูˆู„ bases ู„ุฃุนู„ู‰ ุงุชู†ูŠู† ุจุชุญุจ
448
00:48:30,320 --> 00:48:36,170
ุชุชุฃูƒุฏ ุงู† ู…ุงุนู†ุฏูƒูŠุด ู…ุดูƒู„ุฉุฎุฏ ุงูƒุณ ูˆุงุญุฏ ูˆ ุงูƒุณ ุงุชู†ูŠู†
449
00:48:36,170 --> 00:48:40,130
ู…ูˆุฌูˆุฏุฉ ููŠ ู‚ุงุฑุฉ ุงุชู†ูŠู† ูˆ ุดูˆู ู‡ุฐุง ุงู„ element ุจุชู‚ุฏุฑ
450
00:48:40,130 --> 00:48:45,050
ุชูƒุชุจู‡ ุจุฏู„ุงู„ุฉ ุงูŠ ูˆุงุญุฏ ููŠู‡ู… ูˆู„ุง ู„ุง ูŠุนู†ูŠ ู‡ู„ ุจู‚ุฏุฑ ุงู‚ูˆู„
451
00:48:45,050 --> 00:48:48,610
constant ููŠ ุงู„ุงูˆู„ ุฒุงุฆุฏ constant ููŠ ุงู„ุชุงู†ูŠ ุจูŠุนุทูŠู†ูŠ
452
00:48:48,610 --> 00:48:52,330
ุงู„ X ูˆุงุญุฏ ูˆ X ุงุชู†ูŠู† ู„ุฃ ูŠุนู†ูŠ ุจุฏูŠ ุงุฌูŠุจ ู‚ูŠู…ุฉ ุงู„
453
00:48:52,330 --> 00:48:55,590
constant C ูˆุงุญุฏ ูˆ C ุงุชู†ูŠู† ุจุฏู„ุงู„ุฉ X ูˆุงุญุฏ ูˆ X ุงุชู†ูŠู†
454
00:48:55,590 --> 00:49:01,040
ุงู† ุฌุฏุฑุช ุงุฌูŠุจ ุฌุจ ู‡ุฏูˆู„ linearcombination ูŠุนู†ูŠ ุฅุฌุจุงุฑูŠ
455
00:49:01,040 --> 00:49:06,180
ุจุฏูƒ ุชุฌูŠุจู‡ู… ู…ุด ุจู†ู‚ุฏุฑ ู„ุฃ ุจู†ู‚ุฏุฑ ูˆ ู†ุต ูƒู…ุงู† ู†ุฌูŠุจู‡ู… ู„ูŠุด
456
00:49:06,180 --> 00:49:10,020
ู„ุฅู† ู‡ุฏูˆู„ ูŠู…ุซู„ูˆู„ูŠ basis ู„ุฃ ู„ุฅู† ุนู„ู‰ ุฃูŠ ุญุงู„ ููŠ
457
00:49:10,020 --> 00:49:14,500
ุงู„ู…ุญุงุถุฑุฉ ุงู„ู‚ุงุฏู…ุฉ ุงู† ุดุงุก ุงู„ู„ู‡ ุงู„ูŠูˆู… ุจู†ุฑูˆุญ ุจู†ูƒู…ู„
458
00:49:14,500 --> 00:49:18,140
ุงู„ู„ูŠ ู‡ูˆ ู‡ุฐุง ุงู„ section ุงู† ุดุงุก ุงู„ู„ู‡