Chapter 5.7, Problem 9P

In each of Problems $1$ through $12$, find the solutions of the given initial value problem. Draw the graphs:

$y\text{'}\text{'}+y=u_{\pi /2}(t)+3\delta (t-3\pi /2)-u_{2\pi }(t);$

$y(0)=0,$ $y\text{'}(0)=0.$