Question

if sin alpha equals to 1 by 2 and Cos beta equals to 1 by 2 then find the value of alpha + beta​

Answer 1

Answer:

❤ Hello ❤

Step-by-step explanation:

$\sin( \alpha ) = \frac{1}{2} \\ \cos( \beta ) = \frac{1}{2} \\ = > \sin(30) = \frac{1}{2} \\ = > \cos(60) = \frac{1}{2} \\ = > \alpha + \beta = 30 + 60 \\ = > 90$

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Answer 2

Answer:

sin a = 1/2 cos b=1/2

sin a=30, cos b=60

30+60=90

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