Question

sin A = 1/2 and cos B = 1/2 , then the value of (A+B) is

• A. 30°
• B. 90°
• C. 45°
• D. 60°

Answer 1

Answer:

B. 90°

sinA = 1/2 A= 30 cosB = 1/2 B= 60 A+B= 30 + 60 = 90°