1. The problem statement, all variables and given/known data Find the solution for L[y]=H(t-pi/2)sint=q(t) y(0)=0 by using the Green's function. 2. Relevant equations 3. The attempt at a solution My problem is that I'm stuck with how to get the Heaviside into the required general solution. Is it anything to do with the fact that the Heaviside function is the integral of the Delta Dirac function? Help. I'm really stuck!