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u JU VJ 11sin (A + 3B) + sin (3A + B)_sin 2A + sin 2B(a) 2 cos (A + B) (b) 2 sin (A - B)(c) 2 sin (A + B) (d) 2 cos (A - B) |
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Answer» your answer is 2 cos( A+B) |
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