Question

if sin (A-B)=1/2 and cos (A+B)=1/2 then value of B is​

Answer 1

Answer:

sin(A-B)=1/2

A-B=30...(i)

cos(A+B)=1/2

A+B=60...(ii)

Adding (i) and (ii)

2A=90

A=45

A-B=30

B=15(Answer)