1. The problem statement, all variables and given/known data when im solving quantum problem, i see an equation like e^(-kx) e^(icx) i is imaginary. how can i take the integral and derivative of this function 2. Relevant equations e^ix ) cosx + isinx 3. The attempt at a solution actually i tried e^x(-k+ic) and i said the derivative is just (-k+ic)* e^x(-k+ic) :) please help and teach me!