Suppose θ is in the interval (90°, 180°). Find the sign of each of the following. sec(θ + 180°)

Suppose θ is in the interval (90°, 180°). Find the sign of each of the following. cot(θ + 180°)

Suppose θ is in the interval (90°, 180°). Find the sign of each of the following. sin(-θ)

Find all values of θ, if θ is in the interval [0°, 360°) and has the given function value. sec θ = -2√3 3

Evaluate each expression. Give exact values. tan² 120° - 2 cot 240°

Evaluate each expression. Give exact values. sec² 300° - 2 cos² 150°

Find the reference angle for each angle.

205°