How do you use the unit circle to find the exact values of trigonometric functions?

Answer 1

Andrea Dillon

To find exact values of trigonometric functions using the unit circle, identify the angle on the circle, then use the coordinates (cos(θ), sin(θ)). For tan(θ), use sin(θ)/cos(θ). For sec(θ), csc(θ), and cot(θ), use the reciprocals of cos(θ), sin(θ), and tan(θ) respectively.