- #1

- 784

- 11

## Homework Statement

This problem relates to nothing we talked about in class...

Determine the global extreme values of f(x,y) = x^2 + 2y^2 on the unit square D={(x,y):0<x,y<1}

So first of all I don't see how D={(x,y):0<x,y<1} defines a square.

df/dx = 2x

df/dy = 4y

anyone wanna guide this lost sheep?