Student Comments

balajia | Student

`f(t)=cot(t)e^(-t)`

`f'(t)=(-cosec^2(t))e^(-t)+cot(t)(-e^(-t))`

`f'(t)=-((cosec^2(t)+cot(t)))/e^t`

Student Comments

balajia | Student

`f(t)=cot(t)e^(-t)`

`f'(t)=(-cosec^2(t))e^(-t)+cot(t)(-e^(-t))`

`f'(t)=-((cosec^2(t)+cot(t)))/e^t`