I need help in solving this question on polar curve. Consider the polar curve r = 4 sin(6). (a) On the polar curve above, find the rectangular coordinates of the points corresponding to the following values of 6: 6′ = U, E E 5H 231′. 3 1′ 2 1′ 4 1(b) Find the plane curve equation of the given polar curve. (c) Sketch a graph of the polar curve, indicating the pointsyou found in part (a). (d) Find all values (if any) of 9 that correspond to therectangular point (2×5, 2) on the polar curve.