Question

If sin A = 1/2 and cos B = 1/2 then A+B=​

Answer 1

Answer:

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Step-by-step explanation:

Answer:

A+B = 90°

Explanation:

Given

i ) sinA = \frac{1}{2}

2

1

\implies SinA = sin30⟹SinA=sin30

Now ,

A = 30° ----(1)

ii ) cosB = \frac{1}{2}

2

1

\implies cosB = Cos60⟹cosB=Cos60

=> B = 60° ----(2)

Now,

Value of (A+B)

= 30°+60° [ from (1)&(2) ]

= 90°

Therefore,.

A+B = 90°

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Answer 2

Answer:

sin A=½

sin A=sin 30°

A=30°

cos B=½

cos B=cos 60°

B=60°

A+B=30°+60°=90°