# Math Help - Double integrals problem - help appreciated

1. ## Double integrals problem

Hi, please look at the following problem:

$\iint_{D} 5xydydx$

I was asked to evaluate the above by considering the following:

D is the region enclosed by the triangle with vertices (1,1), (2,2) and (3,0)

I would appreciate any help in tackling this problem - many thanks in advance

2. ## Re: Double integrals problem

What have you done?

A sketch would be a good start.

3. ## Re: Double integrals problem - help appreciated

Yes, I sketched and found out that I need to add two separate integrals.

4. ## Re: Double integrals problem - help appreciated

Good. Do you know the equations of the lines that form the triangle?