# Math Help - proving equation

1. ## proving equation

Given that y=1/(2+sin2x)

show that d^2y/dx^2=2/y(dy/dx)^2+4y^2sin2x

2. ## Re: proving equation

First, find $\frac{dy}{dx}$ and $\frac{d^2y}{dx^2}$. Substitute those expressions into the equation you are trying to prove, and see if you get equality.