Question

If sin (A-B) = 1 /2
Cos (A+B)= 1 / 2
find A, B.​

Answer 1

Answer:

sin(A-B) =1/2=Sin30

so A-B=30

Cos(A+B) = 1/2=Cos60

A+B=60

solving two equations

A=45

B=15