Question

if cos A =1/2 and sin b=1/2 then A+B =

Answer 1

Answer:

A+B = 90°

Step-by-step explanation:

We know that

Cos 60° = 1/2

&

Sin 30° = 1/2

Then

A = 60°

&

B = 30°

So,

A+B = 60°+30° = 90°