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I need help on this question Express the product as a sum containing only sines or cosines. 96 0 cos cos 2 2 O A.

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I need help on this question

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Express the product as a sum containing only sines or cosines. 96 0 cos cos 2 2 O A. ~12[cos(46)+ cos (59)] " Q 'B. -12-[cos(50)~ sin (43)] Q o. I (3052(98) "/0 D. %[cos(109)- sln(89)]

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