1 Suppose tano and that the angle is in Quadrant 3 a Use only fundamental identities to find the exact value of cosp b Use the methods of Section 1 3 quadrant reference triangle to find the exact value of cosp c If you use the inverse tangent will you be able to find the approximate value of the angle based only on the inverse tangent In other words if you hit the inverse tangent button for 2 3 on your calculator will it give you the angle we are looking for Briefly explain d Find the approximate value of the angle rounded to the nearest whole degree e Write an expression for all coterminal angles to your answer to part d in radians