No 9 and 10 pls kindly show how to find the bounds and please help me

9. The region inside the circle r = 4 cos(0) but outside the circle r = 3 sin(0). (same hint as Exercise 8) -25 2.5 1.25 -1.25 1.25 25 37 -1.25 -75 Exercise 9 Exercise 10 and 11 10. The region insider = 3 + 2 cos0 but outsider = 5 - 3 sin0. Hint: Since one of the intersection points is in the 2nd quadrant, solve for cos instead of sin to find the limits of integration. You will need only one integral to find the area, but it will involve both curves. 11. The region insider = 5 - 3 sin but outside r = 3 + 2cos0. Note: You must go counterclockwise to get the limits of the integral. 12. The region inside both the cardioid r = 3 + 3 sin and the circle r = 4cos0