हल कीजिए ` (d^2 y)/(dx^2)=x + e^x`

If y=e^(x) , then (d^(2)y)/(dx^(2)) = e^(x) .

If y=e^-x cos x , show that (d^2y)/(dx^2)= 2e^-x sin x

The integrating factor of (d ^(2) y )/( dx ^(2)) - y = e ^(x) is e ^(-x) then its solution is

If y=xlog(x/(a+b x)),t h e nx^3(d^2y)/(dx^2)= (a) (x(dy)/(dx)-y) ^2 (b) x (dy/dx)-y (c) y(dy/dx)-x (d) (y(dy/dx)-x)^2