Math, asked by muskanlark6124, 1 year ago

Cot(a+b)=0and sin(a+2b)=?

Answers

Answered by AJAYMAHICH
1
If cot (a+b) = 0 = cot (π/2), then : a+b = π/2. 

∴ sin ( a + 2b ) = sin [ (a+b) + b ] = sin [ (π/2) + b ] = cos b ... Ans.
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