Question

If sin a=1/2 and cos ß =1/2, then a + ß=..........
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Answer 1

Answer:

90

Step-by-step explanation:

sin a=1/2

sin a= sin 30°

a=30°

cos b=1/2

cos b=cos 60°

b=60°

So,a+b=30+60=90°.

Answer 2

$\alpha = 30$

$\beta = 60$

$\alpha + \beta = 90$