Using polar coordinates, evaluate the integral which gives the area which lies in the first quadrant below the line y=10 and between the circles x2+y2=400 and x2?20x+y2=0.

Using polar coordinates, evaluate the integral which gives the area which lies in the rst quadrant below the line 3; = 10 and between the circles 3:2 + y? = 400 and 3:2 202: + y? =