which of the folloaing equalities is A Sin A sinB = -0.S (CoS(At B)- Cos (A-B)) BCOSA-COSB = 2 Sin o-s (A+B) * sin o5(A-B) coS 2A = 2 Ccos²A-1 O cos (A-B)= OSA COS B+sin A sin8 %3D

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