9a. Write a trigonometric equation for which the solutions lie in quadrant I and II. Then solve the equation for 0 <= θ <= 2pi
b. Write a trigonometric equation for which the solutions lie in quadrants II and III. Solve the equation for 0 <= θ <= 2pi
c. Write a trigonometric equation for which the solutions lie in quadrants III and IV. Solve the equation for 0 <= θ <= 2pi