`J(v) = (v^3 - 2v)(v^-4 + v^-2)` Differentiate.

balajia | Student

`J(v)=v^(-1)-2v^(-3)+v-2v^(-1)`

`=v-v^(-1)-2v^(-3)`

`J'(v)=1-(-1)v^(-2)-2(-3)v^(-4)`

`J'(v)=1+v^(-2)+6v^(-4)`

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