Question

plz. give answer of this question

Answer 1

sin(A+B)=1
sin(A+B)=sin 90
A+B=90 -1.
sin(A-B)=1/2
sin(A-B)=sin 30
A-B=30 -2.
A+B=90
A-B=30
2A=120
A=60
60+B=90
B=30
Hope it helps!!

Answer 2

Sin(A+B) = 1

now A+B = Sin^-1(1). (Inverse Trigo)

A+ B = 90° -------(1)

similarly

Sin(A-B) = 1/2

A-B = Sin^-1(1/2).

A-B = 30° -------(2)

By solving both equations

2A = 120°

A = 60°

now put value of A in eq (1)

U get B = 30°

Hope it helps...
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