7 (8 points) Consider the curves r1 = sin (20) and r2 = sin (0) (a) Sketch r1 (0) and r2(0) in Cartesian coordinates to see how r, and r2 change with 0. (b) Use your sketches from (a) to help you plot ri (0) and r2(0) in Polar form on the same polar axis. (c) Determine where the two curves intersect. (d) Find the area that lies inside the curve r1 = sin (20) and outside the curve r2 = sin (0). + Drag and drop an image or PDF file or click to browse