Question

For the following equations, determine its order, degree (if exists)

`("d"^2y)/("d"x^2) = xy + cos(("d"y)/("d"x))`

Answer 1

In this equation

The highest order derivative is `("d"^2y)/("d"x^2)` and its power is 2.

It has a term `cos(("d"y)/("d"x))`

So its degree is not defined or degree does not exist.