# Math Help - Partial Derivatives

1. ## Partial Derivatives

Find the partial derivatives of f(x,y) = x arctan(y).

2. straightforward, show us what complicates you.

3. I don't remember how to find the derivative of arctan(y).

4. that's just $\frac1{1+y^2}.$

5. oh. thank you. i just kind of blanked there.