y=(sin x)^lnx 对数求导

（sinX求导*linX）+（sinx*linx的导数）=cosx*linx+sinx*1/X

y = (sinx)^lnx
lny = (lnx) ln(sinx)
(1/y) y' = (lnx) (1/sinx) cosx + (ln(sinx)) 1/x
= (lnx) cotx + (1/x) lin(sinx)
y' = [(lnx) cotx + (1/x) lin(sinx)]y
= [(lnx) cotx + (1/x) lin(sinx)]((lnx) cotx + (1/x) lin(sinx))追问

y=x根号下(1-x)/(1+x) y=(x^2/1-x)*根号下(5-x)/(3+x)^2

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