利用乘法的導(dǎo)數(shù)公式和復(fù)合函數(shù)的導(dǎo)數(shù)公式
y=lnx *sin5x
y'=(lnx)'*sin5x+lnx*(sin5x)'
=(1/x)*sin5x+lnx*cos5x *5
=(sin5x)/x+5lnx *cos5x
求導(dǎo)y=Inx*sin5x
求導(dǎo)y=Inx*sin5x
數(shù)學(xué)人氣：382 ℃時間：2020-05-24 08:19:49
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