y=ln^2(1-x)求导

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y=ln^2(1-x)求导y=ln^2(1-x)求导y=ln^2(1-x)求导Y=[LN(1-X)]^2?Y''=2LN|1-X|/(1-X)(-1)=-2LN|1-X|/(1-X)1/2(x-1)

y=ln^2(1-x)求导
y=ln^2(1-x)求导

y=ln^2(1-x)求导
Y=[LN(1-X)]^2 ?
Y'=2LN|1-X|/(1-X)(-1)
=-2LN|1-X|/(1-X)

1/2(x-1)