设y=x2(1nx-1)-(1-x2)lnx,求dy/dx.
设y=x2(1nx-1)-(1-x2)lnx,求dy/dx.
【正确答案】:y′=2x(lnx-1)+x2•1/x-(-2z)lnx-(1-x2)•1/x
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