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xiao123lin5
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- Ó¦Öú: 1 (Ó×¶ùÔ°)
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- É¢½ð: 6
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- ×¢²á: 2014-03-19
- ÐÔ±ð: MM
- רҵ: ¹¤³ÌÈÈÎïÀíÏà¹Ø½»²æÁìÓò

2Â¥2015-09-01 15:02:18
peterflyer
ľ³æÖ®Íõ (ÎÄѧ̩¶·)
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- ÊýѧEPI: 10
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£¨1£© Lim{[(x^2-1)/(x^2+1)]^x£¬x-->¡Þ} ÁîI = Lim{[1-2/(x^2+1)]^x£¬x-->¡Þ} Lim{LnI£¬x-->¡Þ}=Lim{x*Ln[1-2/(x^2+1)], x-->¡Þ} =Lim{Ln[1-2/(x^2+1)]/(1/x) , x-->¡Þ} =Lim{1/[1-2/(x^2+1)]*(-2)*2*x/(x^2+1)^2/(-1/x^2) , x-->¡Þ} =Lim{4*x^3/(x^2+1)^2 , x-->¡Þ} =0 ¹Ê£º Lim{[(x^2-1)/(x^2+1)]^x£¬x-->¡Þ}=I=exp(LnI)=exp(0)=1 |
3Â¥2015-09-01 15:24:16
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4Â¥2015-09-01 15:32:35
peterflyer
ľ³æÖ®Íõ (ÎÄѧ̩¶·)
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5Â¥2015-09-01 15:33:52
peterflyer
ľ³æÖ®Íõ (ÎÄѧ̩¶·)
peterflyer
- ÊýѧEPI: 10
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6Â¥2015-09-01 15:35:40
dragonship
Ìú¸Ëľ³æ (ÕýʽдÊÖ)
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7Â¥2015-09-01 17:35:56
dragonship
Ìú¸Ëľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 159 (¸ßÖÐÉú)
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8Â¥2015-09-01 17:37:06
peterflyer
ľ³æÖ®Íõ (ÎÄѧ̩¶·)
peterflyer
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9Â¥2015-09-02 12:46:50
peterflyer
ľ³æÖ®Íõ (ÎÄѧ̩¶·)
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- ³æºÅ: 1482829
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10Â¥2015-09-02 13:46:42













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