1. ## 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.

2. Is this

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

Where $\displaystyle R=\left\{(x,y):x^2-2x+y^2-6y+9\leq{0}\right\}$?

3. 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.

4. Can anyone tell me if this correct?

I put a better pic.

10x.

5. 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.