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math2000

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dy/dlnx=(dy/dx)*(dx/dlnx)=(dy/dx)*(dlnx/dx)^(-1)=-(x/B)/(1-x/B)
2Â¥2012-04-19 19:04:22
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2Â¥: Originally posted by math2000 at 2012-04-19 19:04:22:
dy/dlnx=(dy/dx)*(dx/dlnx)=(dy/dx)*(dlnx/dx)^(-1)=-(x/B)/(1-x/B)

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3Â¥2012-04-19 20:36:05
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laosam280

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4Â¥2012-04-19 21:51:45
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laosam280

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5Â¥2012-04-19 21:52:11
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shumolynu

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6Â¥2012-04-20 11:00:46
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math2000

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ÒýÓûØÌû:
3Â¥: Originally posted by ËØÔÂÄ«Óð at 2012-04-19 20:36:05:
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7Â¥2012-04-20 18:00:20
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katting

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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÎÒËã³öµÄ½á¹ûÊÇ-ABx/(x-B)^2,
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8Â¥2012-04-20 23:02:33
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