1. The problem statement, all variables and given/known data If v(t) = t - 4 and i(t) = 3t, find the instantaneous power p(t) as a function of time. 2. Relevant equations 3. The attempt at a solution p(t) = ∫ v(t)*i(t) dt p(t) = ∫ (t-4)*(3t) dt Is it correct to do this? Or am I supposed to take the derivative of the functions v(t) and i(t) first and then multiply them and take the integral? Thanks!