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Evaluating expressions involving sine and cosine 5 TC If 0 6 find the exact value of each expression below. 0 (a) cos(-0) = 1 X

Evaluating expressions involving sine and cosine 5 TC If 0 6 find the exact value of each expression below. 0 (a) cos(-0) = 1 X 5 ? (b) cos 20 = (c) cos-0 =

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