Question: Express the product as a sum containing only sines or cosines. sin (70) cos (30) -+ O A. 7[cos (100) - cos (40)] [(et) uis

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

sin (70) cos (30) -+ O A. 7[cos (100) - cos (40)]

Express the product as a sum containing only sines or cosines. sin (70) cos (30) -+ O A. 7[cos (100) - cos (40)] [(et) uis + (0OL) uIs ]- 8 0 O C. 7[sin (100) + cos (40)] O D. cos 2 (2102)

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