Back to Extend trigonometric functions using unit circle — Problem 1 · Task Set 66
Exercises: Extend Trigonometric Functions Using the Unit Circle
Show all steps for each problem. Leave answers involving square roots in exact form (e.g., $\frac{\sqrt{2}}{2}$) unless otherwise stated.
Grade 9·21 problems·~30 min·Common Core Math - HS Functions·group·hsf-tf-a-2
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Warm-Up: Review What You Know
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1.
In a right triangle with hypotenuse 1, if is the angle at the origin, which of the following correctly describes using right-triangle trigonometry?