Question

how to integrate double integration, both from 0 to 1, xy sqrt(x^2+y^2) dy dx?

Answer 1

First, integrate it in terms of y from 0 to 1. Treat x as a constant while you do this. Then take what you get for that and integrate it in terms of y from 0 to 1.

Answer 2

Should i multiply the xy term inside the sqrt first?

Answer 3

Sorry for the slow reply. Try u substitution for y^2 in the first integration. Treat x as a constant, like as if it were 5 or something.

Answer 4

Is ok, i've done it before the reply, thanks a lot...