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Question 8 Express the product as a sum containing only sines or cosines. 110 COS 2 COS NO . . . O A. 7[ cos

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Question 8

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Express the product as a sum containing only sines or cosines. 110 COS 2 COS NO . . . O A. 7[ cos (50) + cos (60)] O B. - cos 2(110) 1 O C. -[cos (120) - sin (100)] 1 O D. 7[cos (60) - sin (50)]

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