PLEASE HELP!!! Devise a general formula to solve the following!!! Integrals?

Question

Integral of k f^1(x) e^f(x) dx

where k is a constant.

please help :)

Answer 1

If f^1(x) means the derivative of f(x) putting f(x)=z gives you f^1(x)dx=dz and the integral becomes Int e^u du = e^u+c
=ke^f(x) +C