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[函数] 对数函数有关的两根问题

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realnumber Posted 2014-3-20 17:24 |Read mode
Last edited by realnumber 2014-3-20 20:47湖南长沙胡晓昊 QQ图片20140310232831.jpg


静静等待  20:42:37
有两个不是说只有两个
没说恰有两根

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 Author| realnumber Posted 2014-3-20 20:57
f'(x)=0,f(x)=0方程组消去a后是超越方程.
没看出特殊解符合.

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 Author| realnumber Posted 2014-3-20 23:01

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踏歌而来 Posted 2014-3-21 22:44
楼主的这道题有点意思,有空时我好好看看。

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isee Posted 2014-3-21 23:24
回复 3# realnumber

例2曾经在老论坛说过,这些题,都很难搞

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其妙 Posted 2014-3-21 23:55

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kuing Posted 2014-3-22 01:04

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