Question

if 2sin(A+B)=1 and 2sin(A+B)=root 3,then A=​

Answer 1

sin(A-B) = 1/2 and sin(A+B)= (root 3)/2

=> A-B = 30 degree ---------(1) and A+B = 60 degree----(2)

=> adding (1) and (2) we get

A-B+A+B = 30 + 60

=> 2A = 90

=> A = 45 degree

Answer 2

Answer:

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