A function $y(t)$, such that $y(0)=1$ and $y(1)=3e^{-1}$, is a solution of the differential equation

$\frac{d^{2}y}{dt^{2}}+2\frac{dy}{dt}+y=0$. Then $y(2)$ is

1. $5e^{-1}$
2. $5e^{-2}$
3. $7e^{-1}$
4. $7e^{-2}$

retagged