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7T 7T 7T Write coscos 3 - sin 3 -sin as a trigonometric function of one number. 8 3 Keep r in your answer. Be sure to PREVIEWIf sin(- -) A cos x, then 2 the number A

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0 Cos II Cos I Eim sinto sin II Il us ) ( She han ) = Cos Cars Formula Cos (a+b) = Casa Casb- sina sin b sin (3-) A Cern simn

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