Use the given information to find the exact value of a. sin 20 b. cos 20, and c. tan 20. cos = 21 -- a. sin 20= 29 b. cos 20= c. tan 20= 0 lies in quadrant IV F (Type an integer or a fraction. Simplify your answer.) (Type an integer or a fraction. Simplify your answer.) (Type an integer or a fraction Simplify your answer.)

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