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Question 5 Express the sum or difference as a product of sines and/or cosines. sin (80) - sin (20) . . . O A. 2

Question 5

Express the sum or difference as a product of sines and/or cosines. sin (80) - sin (20) . . . O A. 2 sin (30) Q B. 2 cos (20) cos (50) O C. 2 sin (50) cos (30) O D. 2 sin (30) cos (50)

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