Math, asked by nhaaa, 2 months ago

cos(A+B) + cos(A-B) / sin(A+B) + sin(A-B) =cotA

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Answered by ranjanshinde10

Answer:

cos(A + B)cos(A - B) = sin(C + D)sin(C - D) Using compounds dividend cos(A + B) + cos(A - B)cos(A + B) - cos(A - B) = sin(C + D) + sin(C - D)sin(C + D) ...

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