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if sin (A+B)=fraction numerator square root of 3 over denominator 2 end fractionand sin b=1 halfthen find A and B.

Asked by Shubhangi 27th March 2017, 12:57 PM
Answered by Expert
Answer:
begin mathsize 16px style Given space that space sin left parenthesis straight A plus straight B right parenthesis equals fraction numerator square root of 3 over denominator 2 end fraction space and space sinB equals 1 half
We space know space that comma space sin 30 degree equals 1 half
rightwards double arrow straight B equals 30 degree
So comma space sin left parenthesis straight A plus straight B right parenthesis equals fraction numerator square root of 3 over denominator 2 end fraction
rightwards double arrow straight A plus straight B equals 60 space space.... open parentheses Since space sin 30 degree equals fraction numerator square root of 3 over denominator 2 end fraction close parentheses
rightwards double arrow straight A equals 30 degree
Hence comma space straight A equals 30 degree space space space and space space space space straight B equals 30 degree.
end style
Dear student, sorry for the late reply. There was some technical issue and we could not see the query in the Maths section. Regret the inconvenience caused.
Answered by Expert 29th March 2017, 5:13 PM
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