Question: Express the product as a sum containing only sines or cosines. cos (30) cos (20) OA. cos (602) O B. 5[ cos (50) - sin

Express the product as a sum containing only sines or cosines.

cos (30) cos (20) OA. cos (602) O B. 5[ cos (50)

Express the product as a sum containing only sines or cosines. cos (30) cos (20) OA. cos (602) O B. 5[ cos (50) - sin 0] O c. [ cos (50) - cos 0] 1 D. [ cos 0 + cos (50)]

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