Calc

2. (12 points) Use the polar coordinates to compute the following integrals. ( A) 1-202 1 y = - 1-22 (1 + x2 + 22)2 dy da (B) 2 2 + 2/2 dA , D where D = (x, y) |15 x2 + 32 5 4, yz 0)