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Evaluating the cosine of a sum of two angles can be done using cos(A +...

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Evaluating the cosine of a sum of two angles can be done using cos(A + B) = ?a) sin(A) sin(B) cos(A) cos(B)b) None of thesec) cos(A) cos(B) + sin(A) sin(B)d) cos(A) cos(B) sin(A) sin(B)

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