# Thread: Max/Min using Lagrange Multiplier Method

1. ## Max/Min using Lagrange Multiplier Method

Problem: Find the absolute maximum and minimum values for f(x,y) = sin x + cos y on the rectangle R defined by 0<=x<=2pi and 0<=y<=2pi using the method of Lagrange Multipliers.

I'm having trouble putting the constraints into something I can work with.