Question

If sin α =1/2, cos β =1/2 , find degree measure of α + β .

Answer 1

the degree of both are 0=1 so the degree is 1

Answer 2

sin α =1/2 or sin α= sin 30 degree Therefore α= 30 degree
Again cos β= 1/2 or cos β= cos 60 degree Therefore β= 60 degree
Now α+β= 30 degree + 60 degree
= 90 degree