Question

24.1f sin(A - B) =¹/² COS (A-B) =1/2 0°< A+B<90°, A > B, find A and B.​

Answer 1

Step-by-step explanation:

sin(A-B)=sin30` {because sin30` value is 1/2} both sin's get cancelled and [A-B=30`]----1 cos(A+B)=cos60` {because cos60` value is 1/2} BOTH cos's get cancelled and [A+B=60]----2 add 1 and 2 equations we get A=45` substitute A=45` in eq. 1 we get B=15` therefore A=45 B=15

Answer 2

Answer:

A-B=60°

A+B=30°

=>A=45°

B=15°