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.
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