Question

If $sin(A-B)=\frac 12$ and $cos(A+B)=\frac 12$, then $∠A, ∠B$ ?

• A. 45°, 15°
• B. 15°, 45°
• C. 45°, 30°
• D. 30°, 15°

Answer 1

Answer: (A)

45°, 15°

Answer 2

The correct option is (A): 45°, 15°.