prove that 2sin^a+4cos(a+b)sinb.cosa+cos2(a+b) is independent of a
prove that 2sin^a+4cos(a+b)sinb.cosa+cos2(a+b) is independent of a
Rishank Mehrotra , 7 Years ago
Grade 11
Trigonometry> prove that 2sin^a+4cos(a+b)sinb.cosa+cos2...
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