Please can u solve these sums 

Q7. f(x) = sin x   Q8. f(x) = tanx  Q9. f(x) =  x 3  - 8 Q10. f(x) =  x sin x Q11. f(x) = x 2  . sin x.

Dear student
It is not  mentioned what to find in the question.So, according to chapters name finding the derivative.
Que11f(x)= x2sinxf'(x)= 2x sinx+x2cosxQue10 f(x)=xsinxf'(x)=sinx-xcosxsin2x
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