For each of the exercises given below, verify that the given function (implicit or explicit)
is a solution of the corresponding differential equation.
i) \(y=ae^x+be^{-x}+x^2: x\frac{d^2y}{dx^2}+2\frac{dy}{dx}-xy+x^2-2=0\)
ii) \(y=e^x(a \cos x+ b \sin x):\frac{d^2y}{dx^2}-2\frac{dy}{dx}+2y=0\)
iii) \(y= x \sin 3x:\frac{d^2y}{dx^2}+9y-6\cos3x=0\)
iv) \(x^2=2y^2\log y:(x^2+y^2)\frac{dy}{dx}-xy=0\)