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Àî¸ÉÊÇ(feixiaolin´ú·¢): ½ð±Ò+10 2015-09-15 18:23:53
¹¹Ô츨Öúº¯Êýg(x)=(e^(ax))¡¤f(x)¡£
Ôòlimf(x)=lim(g(x)/(e^ax))
               =lim(g'(x)/(a¡¤e^ax))¡­¡­ÍƹãÂå±È´ï·¨Ôò
               =b/a.

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PreferenceforMathematics
2Â¥2015-09-15 16:48:21
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feixiaolin: ½ð±Ò+2 2015-09-15 18:24:00
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PreferenceforMathematics
3Â¥2015-09-15 16:50:53
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гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by ÖÕ̫֮µ¶¡ªÏþ at 2015-09-15 16:48:21
¹¹Ô츨Öúº¯Êýg(x)=(e^(ax))¡¤f(x)¡£
Ôòlimf(x)=lim(g(x)/(e^ax))
               =lim(g'(x)/(a¡¤e^ax))¡­¡­ÍƹãÂå±È´ï·¨Ôò
               =b/a.

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4Â¥2015-09-15 17:32:20
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hylpy

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ÒýÓûØÌû:
2Â¥: Originally posted by ÖÕ̫֮µ¶¡ªÏþ at 2015-09-15 16:48:21
¹¹Ô츨Öúº¯Êýg(x)=(e^(ax))¡¤f(x)¡£
Ôòlimf(x)=lim(g(x)/(e^ax))
               =lim(g'(x)/(a¡¤e^ax))¡­¡­ÍƹãÂå±È´ï·¨Ôò
               =b/a.

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5Â¥2015-09-15 19:33:12
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math2000

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ÓиöÒÉÎÊ£¬¸ÃÌâ½áÂÛ³ÉÁ¢Âð£¿×ܾõµÃÌõ¼þ²»¹»°¡
ÀýÈçÈ¡f(x)=e^(-x),a=3,b=2
Ôòlim(f'(x)+3f(x))=lim2e^(-x)=2
µ«limf(x)=1?
6Â¥2015-09-16 19:27:29
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

vect

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
6Â¥: Originally posted by math2000 at 2015-09-16 19:27:29
ÓиöÒÉÎÊ£¬¸ÃÌâ½áÂÛ³ÉÁ¢Âð£¿×ܾõµÃÌõ¼þ²»¹»°¡
ÀýÈçÈ¡f(x)=e^(-x),a=3,b=2
Ôòlim(f'(x)+3f(x))=lim2e^(-x)=2
µ«limf(x)=1?

lim2e^(-x)ÔÚÕýÎÞÇîÔ¶´¦Îª0
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