1.
y=e^{-t}(c_{1}\cos(t)+c_{2}\sin(t))
2.
y=c_{1}\cos(t)+c_{2}\sin(t)
3.
y=e^{2t}(c_{1}\cos(3t)+c_{2}\sin(3t))
4.
y=e^{-\frac{t}{2}}(c_{1}\cos(t)+c_{2}\sin(t))
5.
y=e^{-\frac{t}{2}}(c_{1}\cos(\frac{\sqrt{3}t}{2})+c_{2}\sin(\frac{\sqrt{3}t}{2}))
6.
y=c_{2}e^{-3t}\sin(2t)
7.
y=c_{1}\cos(\sqrt{2}t)+c_{2}\sin(\sqrt{2}t)
8.
y=c_{1}\cos(\frac{5t}{3})+c_{2}\sin(\frac{5t}{3})
9.
y=\frac{\cos(\sqrt{2}t)(1-2\sin(\sqrt{2}π)c_{2})}{2\cos(\sqrt{2}π)}+c_{2}\sin(\sqrt{2}t)
10.
y=e^{-3t}(c_{1}\cos(4t)+c_{2}\sin(4t))