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- Compute using polar coordinates , y dA where S is the area of region in first quadrant outside the circle x? + y2 = 50 and inside the circle x? + y2 = 1 (b)Find the area of the region of intersection of the curves r = 4+3 cos and r = 2 cos 0. Identify and sketch the curves. Label the points of intersection and shade the desired region.Compute using polar coordinates S, y dA where S is the area of region in first quadrant outside the circle x² + y? (b) 2 and inside the circle x? + y² = 1 =