# Calculus

• Jul 15th 2008, 10:40 AM
asi123
Calculus
I need to find the limits of the integral, I solved it with polar coordinate (I think it's called like that...) but I'm not sure it's correct.

Do I need to go back to x and y in the solution?

10x.
• Jul 15th 2008, 10:48 AM
Mathstud28
Is this

$\iint_{R}f(x,y)~dx~dy$

Where $R=\left\{(x,y):x^2-2x+y^2-6y+9\leq{0}\right\}$?
• Jul 15th 2008, 11:25 AM
asi123
Yes it is.

Can u see the pic ok, Mathstud28?

Last time u had a problem seeing stuff I scanned.

Next time I'll shrink it a bit. (Hi)
• Jul 15th 2008, 08:06 PM
asi123
Can anyone tell me if this correct?

I put a better pic.

10x.
• Jul 15th 2008, 09:22 PM
mr fantastic
Quote:

Originally Posted by asi123
Can anyone tell me if this correct?

I put a better pic.

10x.

Looks fine except for one small thing - your final answer is missing the r in the integrand from the Jacobian.