# Thread: Solve this ordinary differential equation

1. ## Solve this ordinary differential equation

Hi everyone

I need help in finding the solution to this ordinary differential equation in the attachment shown.

Thank you.

2. ## Re: Solve this ordinary differential equation

Try rationalizing the denominators.

3. ## Re: Solve this ordinary differential equation

The LHS works well under a trigonometric substitution.
$$u=\tan y \quad \text{or} \quad u=\sinh y$$
The right hand side seems to work best under rationalisation of the denominator followed by a substitution. (All from inspection, I may be wrong on working it through).