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  #1  
Old 03 ¡ØÁÀҾѹ¸ì 2009, 21:35
¤uÃÑ¡la¢'s Avatar
¤uÃÑ¡la¢ ¤uÃÑ¡la¢ äÁèÍÂÙèã¹Ãкº
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¡Ó˹´ãËéÊÒÁàËÅÕèÂÁ ABC ÁØÁ B = $\frac{\pi}{2}$ áÅÐ $\sqrt{1+\sqrt{1+tanC}}$ = 2
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$\frac{1}{\sqrt{cotA}+\sqrt{tanC+1}} + \frac{1}{\sqrt{cotA+1}+\sqrt{tanC+2}}+....+\frac{1}{\sqrt{cotA+99}+\sqrt{tanC+100}}$

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03 ¡ØÁÀҾѹ¸ì 2009 21:38 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ ¤uÃÑ¡la¢
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  #2  
Old 03 ¡ØÁÀҾѹ¸ì 2009, 21:38
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Julian Julian äÁèÍÂÙèã¹Ãкº
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$¡Ó˹´ãËéÊÒÁàËÅÕèÂÁ ABC ÁØÁ B = \frac{\pi}{2} áÅÐ \sqrt{1+\sqrt{1+tanC}} = 2 $

$¨§ËÒ¤èҢͧ$

$\frac{1}{\sqrt{cotA}+\sqrt{tanC+1}} + \frac{1}{\sqrt{cotA+1}+\sqrt{tanC+2}}+....+\frac{1}{\sqrt{cotA+99}+\sqrt{tanC+100}}
$
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  #3  
Old 03 ¡ØÁÀҾѹ¸ì 2009, 22:41
¤³ÔµÈÒʵÃì ¤³ÔµÈÒʵÃì äÁèÍÂÙèã¹Ãкº
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¢é͹ÕéµÍº $\sqrt{108}-\sqrt{8}$
µÍ¹ááãËéá¡éµÃ§ $\sqrt{1\sqrt{1+tanC}}=2$ ¡è͹¤ÃѺ
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03 ¡ØÁÀҾѹ¸ì 2009 22:41 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ ¤³ÔµÈÒʵÃì
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  #4  
Old 03 àÁÉÒ¹ 2009, 18:20
Love math Love math äÁèÍÂÙèã¹Ãкº
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$tanC=8ãªéäËÁ¤ÃѺ$

04 àÁÉÒ¹ 2009 14:09 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ Love math
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  #5  
Old 03 àÁÉÒ¹ 2009, 18:38
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LightLucifer LightLucifer äÁèÍÂÙèã¹Ãкº
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ÍéÒ§ÍÔ§:
¢éͤÇÒÁà´ÔÁà¢Õ¹â´Â¤Ø³ Love math View Post
$tanC=8˹èÇÂãªéäËÁ¤ÃѺ$
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  #6  
Old 04 àÁÉÒ¹ 2009, 14:03
Love math Love math äÁèÍÂÙèã¹Ãкº
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¢Íº¤Ø³¤ÃѺ¤Ø³ LightLucifer
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04 àÁÉÒ¹ 2009 14:08 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ Love math
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