
y=ln的导数怎么求
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y = lnx....................(1)
e^y = x....................(2).........两边对x求导
y' e^y = 1................(3).........解出y'
y' = 1/e^y................(4)
y' = 1/x...................(5)
e^y = x....................(2).........两边对x求导
y' e^y = 1................(3).........解出y'
y' = 1/e^y................(4)
y' = 1/x...................(5)
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