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Part B. Apply the Concepts 1. Find the exact value of sin 20, cos 2a, and tan 2a using the given information. a) sina =

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Part B. Apply the Concepts 1. Find the exact value of sin 20, cos 2a, and tan 2a using the given information. a) sina = -. 5 13' , a terminates in QIII b) cosa = 21 as .

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