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你的敘述讀起來太費勁, 不知道式子是不是這樣的 y=c^xlgx+x^csinx 如果是這樣的則導數為 y'=c^x*lnc*lgx+c^x/(xln10)+cx^(c-1)*sinx+x^c*cosx ^表示幂
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