# Thread: Partial derivative help please?

1. ## Partial derivative help please?

Can you explain how to take the partial derivative with respect to x and y on the following function?

$f(x,y)=x^2e^y-ye^x$

2. $f(x,y)=x^2e^y-ye^x$

To get the partial derivative wrt. x, you treat the y as a constant and differentiate as normal with respect to x.
${\delta_x}=2xe^y-ye^x$
So to get the partial derivative wrt. y, you treat the x as a constant and differentiate as normal wrt y.

3. Would you know how to find the derivative of $Ax^2- Be^x$? If yes, then you should be able take the dervative of f.\

Would you know how to find the derivative of $Ae^y- By$?