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Precalculus Question 9 Evaluate the following expressions. Your answer must be an exact angle in radians and in the interval [0, 7]. Example: Enter pi/6

Precalculus

Question 9 Evaluate the following expressions. Your answer must be an exact angle in radians and in the interval [0, 7]. Example: Enter pi/6 for 6 (a) cos - 1 2 2 (b) cos - 1 2 (c) cos - 1 2

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