Question

If sin A = 1/2 and cos B = 1/2, then A + B = ? ​

Answer 1

Step-by-step explanation:

Given : Sin A = 1/2

Cos B = 1/2

Sin A = 1/2

Sin A = Sin 30° ( according to trigonometric ratios )

A = 30°

Cos B = 1/2

Cos B = Cos 60° ( according to trigonometric ratios )

B = 60°

A+B = 30+60 = 90°