How do you find the derivative of z=x(y^2)-e^(xy)z=x(y2)exy?

1 Answer
Feb 27, 2017

(partial z) / (partial x) = y^2-ye^(xy) zx=y2yexy

(partial z) / (partial y) = 2xy-xe^(xy) zy=2xyxexy

Explanation:

We have:

z=xy^2-e^(xy)z=xy2exy

Which is a function of two variables, so the derivatives are;

(partial z) / (partial x) = y^2-ye^(xy) zx=y2yexy

(partial z) / (partial y) = 2xy-xe^(xy) zy=2xyxexy

Remember when partially differentiating: differentiate with respect to the variable in question, treating the other variables as constant.