Question

A+B=90 degree and sinA=1/2 then the value of sin B is

Answer 1

A + B = 90°.............. (1)

Sin A = 1/2

Sin A = Sin30° { since sin30 = 1/2}

A = 30°

Putting this value on eqn (1)

30 + B = 90°

B = 90-30

B = 60°

Therefore, sinB = Sin60°

$sin60 = \frac{ \sqrt{3} }{2}$
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Answer 2

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