Question: How to solve this 12 8 (a) Express 3 sinx + 2v2 cos (x+ 47) in the form Rsin(x +a), where R 0 and 0

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12 8 (a) Express 3 sinx + 2v2 cos (x+ 47) in the form Rsin(x +a), where R 0 and 0

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