Question

Given that sin alpha=1/√2 and cos beta =1/√2,then the value of (alpha+beta) is (1)

Answer 1

Answer:

Answer

Sin alpha = 1/2

Sin alpha = sin 30°

Alpha = 30°

Cos alpha = 1/2

Cos beta = cos 60°

Beta = 60°

Now, alpha + beta

= 30°+60°

= 90°

Answer 2

Answer:

90

Explanation:

Sin alpha = 1/2

Sin alpha = sin 30°

Alpha = 30°

Cos alpha = 1/2

Cos beta = cos 60°

Beta = 60°

= 30°+60°

= 90°