Question

Sin 3/5
4/5
3/4
5/4

Answer 1

`\boxed{(3)/(5)}`

Explanation:

The trigonometric functions are described as follows:

`sin = (opposite)/(hypotenuse)\\\\cos = (adjacent)/(hypotenuse)\\\\tan = (opposite)/(adjacent)`

Using reference angle ∠A, use the sin trigonometric function. This will be the side opposite (cannot be the hypotenuse) of ∠A over the side adjacent (cannot be the hypotenuse).

The side opposite of ∠A is 3. The hypotenuse of the triangle is 5.

`\boxed{(3)/(5)}` is the final answer!