Back to Extend trigonometric functions using unit circle — Problem 4 · 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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Fluency Practice
Evaluate each expression using the unit circle. Give exact values.
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Use the reference angle strategy to evaluate . Give an exact answer.