1. Use an identity and an inverse function to find all solutions to the equation. 3 tan 8 - 2 = 1 - sec-9 2. Use a sum-to-product identity to find all solutions to the equation. sin(4r) - sin(3x) = 0 3. A pendulum is released at an angle of w/6 radians from the vertical line through its pivot point. It takes 1.25 seconds to swing through the vertical line, extend to -7/6 radians, and return to its starting position. Assuming the pendulum continues to swing in this manner, the function #(t) = 87T cost ) gives the angle between the pendulum and the vertical line through its pivot point t seconds after it is released. Find all times t 2 0 for which the angle is */12