Question

If sin A = 1/2 and cos B = 1/2 , find the value of (A+B).

Answer 1

Answer:

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tanishkasri

tanishkasri

10.09.2018

Math

Secondary School

+5 pts

Answered

If sinA=1/2 and cosB=1/2 then find the value of (A+B)

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Answers

shloksoni Helping Hand

A = sin-1(1/2) = 30°

B= cos-1(1/2) = 60°

A+B = 30+60=90°it

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mysticd

mysticd Genius

Answer:

A+B = 90°

Explanation:

Given

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

\implies SinA = sin30

Now ,

A = 30° ----(1)

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

\implies cosB = Cos60

=> B = 60° ----(2)

Now,

Value of (A+B)

= 30°+60° [ from (1)&(2) ]

= 90°

Therefore,.

A+B = 90°

••••

Answer 2

Answer : 90° ✔️

Solution :

Given that :

sinA = 1/2 and cosB = 1/2

On solving :

sinA = 1/2

=> sinA = sin30°

=> A = 30°

And

cosB = 1/2

=> cosB = cos60°

=> B = 60°

Now, A + B

=> 30° + 60° = 90°

I hope it will be helpful for you ☺️

Fóllòw MË ❤️