Question

sin(A-B) =1/2 ,cos (A+B )= 1/2 then find the value of A and B
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Answer 1

Answer:

sin(A-B)=1/2. cos(A+B)

A-B=30. A+B=60

A-B=30

A+B=60

2A=90

A=90/2

A=45

A-B=30

45-B=30

-B=30-45

-B=-15

B=15