Question

Example-7. If sin (A-B)=1/2,COS (A+B) =1/2, 0°< A+B ≤ 90°, A> B, find A and B.​

Answer 1

sin30= 1/2 so A-B=30 eq 1

now cos60=1/2 so A+B= 60 eq 2

by adding eq 1 and 2

2A=90

so A=45

and B=15.

Answer 2

A = 45

B = 15

Thankss!!

Mark brainliest