If sin (A-B)
1/2and cos(A + B) = 1/2, Find A and B
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Answer:
sin (A-B ) - 1/2
sin(A-B ). - sin 30
A - B = 30. equation 1
cos(A+B) = 1/2
cos(A+B)=cos60
A+B= 60. equation 2
Adding equation 1 and 2
A-B+A+B = 90
2A = 90
A=45
put value in eq 1
A-B=30
45-B=30
-B= -15
B=15
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