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  #1  
Old 03 ÁÕ¹Ò¤Á 2008, 17:48
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tantawan tantawan äÁèÍÂÙèã¹Ãкº
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Cool ˹ѧÊ×ÍÊÍǹ àÃ×èͧ ÍÊÁ¡Òà AM-GM ¶èǧ¹éÓ˹ѡ

ãËé p,q,r $\epsilon$ $R_o$ ÁÕÊÁºÑµÔÇèÒ p+q+r = 1 ¨§¾ÔÊÙ¨¹ìÇèÒ
7(pq+qr+rp) $\leq $ 2+ 9pqr â´Âãªé AM-GM ¶èǧ¹éÓ˹ѡ
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  #2  
Old 03 ÁÕ¹Ò¤Á 2008, 19:52
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t.B. t.B. äÁèÍÂÙèã¹Ãкº
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Çѹ·ÕèÊÁѤÃÊÁÒªÔ¡: 17 ÁԶعÒ¹ 2007
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ÍÊÁ¡ÒÃäÁè¨ÃÔ§¹Ð¤ÃѺ àªè¹ p=1,q=r=0.5
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  #3  
Old 03 ÁÕ¹Ò¤Á 2008, 21:02
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dektep dektep äÁèÍÂÙèã¹Ãкº
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ÍéÒ§ÍÔ§:
¢éͤÇÒÁà´ÔÁà¢Õ¹â´Â¤Ø³ t.B. View Post
ÍÊÁ¡ÒÃäÁè¨ÃÔ§¹Ð¤ÃѺ àªè¹ p=1,q=r=0.5
$p+q+r = 1$ ¹Ð¤ÃѺ
ÍéÒ§ÍÔ§:
¢éͤÇÒÁà´ÔÁà¢Õ¹â´Â¤Ø³ tantawan
ãËé p,q,r ε Ro ÁÕÊÁºÑµÔÇèÒ p+q+r = 1 ¨§¾ÔÊÙ¨¹ìÇèÒ
7(pq+qr+rp) ≤ 2+ 9pqr â´Âãªé AM-GM ¶èǧ¹éÓ˹ѡ
See here: http://www.mathcenter.net/forum/show...?t=1465&page=3
¢éÍ 65. ¤ÃѺ
µÍº¾ÃéÍÁÍéÒ§ÍÔ§¢éͤÇÒÁ¹Õé
  #4  
Old 03 ÁÕ¹Ò¤Á 2008, 22:47
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