QP-202501-Mathematics-UP3 · Question 10

Question (excerpt):
30   10. y P (a, b) O x Figure 2 Figure 2 shows a sketch of the curve with equation x = 3 cos 2y –3  x  3 0  y  2 π (a) Find d d x y in terms of y. (2) (b) Hence show that d d y x k x 9 2 whe…