y=1/2x²的导数~~~~~~~~~~~~~~~~~~~~
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y=1/2x²的导数~~~~~~~~~~~~~~~~~~~~
y=1/2x²的导数~~~~~~~~~~~~~~~~~~~~
y=1/2x²的导数~~~~~~~~~~~~~~~~~~~~
y'=2*(1/2)x^(2-1)
=x
y'=(1/2)(-2)x^(-3)=-1/x^3
y=1/2x²的导数~~~~~~~~~~~~~~~~~~~~
y=1/2x²的导数~~~~~~~~~~~~~~~~~~~~
y=1/2x²的导数~~~~~~~~~~~~~~~~~~~~
y'=2*(1/2)x^(2-1)
=x
y'=(1/2)(-2)x^(-3)=-1/x^3