Question: 5 Select the correct answer. What is the expanded equivalent of cos(a - b)? A. sin a cos b - cos a sin b B.

5 Select the correct answer. What is the expanded equivalent of cos(a - b)? A. sin a cos b - cos a sin b B. sin a cos b + cos a sin b C. cos a cos b - sin a sin b D. cos a cos b + sin a sin b

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