Question

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

Answer 1

Answer:

A=45 , B=15

Explanation:

sin (A-B)=1/2=30° equation 1

cos (A+B)=1/2=60°equation2

equation 1+equation 2

A-B=30°

A+B=60°

=2A=90°

A=45°

equation 2

A+B=90°

B=90°-45°

B=15°