$\frac{d^{2}y}{d{t}^2}-6\frac{dy}{dt}+15y=2sin(3t)$;$y(0)=-1,\frac{dy}{dt}(0)=-4,$ diferansiyel denklemi Laplace y$$ntemini kullanarak $$z$$n$$z $(25$ puan$)$ basit kesirlwre ay$$rma y$$nt