# Double Integral in Rectangular Coordinates

1. ### memish

15
1. The problem statement, all variables and given/known data

2. Relevant equations

n/a

3. The attempt at a solution
I set up the intgral at
integral from 0 to 5 of integral from 0 to 5y of 8e^(y^2)dxdy

I solved it as an iterated integral so I solved the first part, then ended up with integral from 0 to 5 of 40ye^(y^2)

Am I going about it right? Isn't there no antideriative for e^(y^2)? I dont know where to go from here in solving this

Thanks everyone.

2. ### Dick

25,887
Yes, there's no elementary antiderivative for e^(y^2). There is one for y*e^(y^2). Use the substitution u=y^2.