Question

tell me what is the value in given attachment full solution ​

Answer 1

Answer:

A+B=90

so

A=90-B

sin(A)=sin(90-B)

so

sin(A)=cos(B)

hence

sin(A)=3/under root 13

Step-by-step explanation:

Answer 2

Answer:

As we know that Cos(x)=Base/hypotenuse

then According to the given question if you want to make its diagram you will find it as below:

so we have to find Sin A= perpendicular/ hypotenuse

Sin A= 3/√13 (Answer)

Or

As Cos (90° -x)=Sin x

here A+B=90°

B=90° -A

Cos B=3/√13

Cos (90° -A)=3/√13

Sin (A)=3/√13 (Answer)

Step-by-step explanation:

Hope it will help you