Question

If sin alpha= 1/2 and cos beta=1/2, then alpha + beta =?​

Answer 1

Answer:

sin alpha = 1/2

sin 30° = 1/2

on comparing

alpha = 30°

similarly,

cos beta= 1/2

cos 60° = 1/2

on comparing,

beta = 60°

according to question,

alpha + beta= 30° + 60° = 90°

Hope it helps..