Question

How do I solve this? Thank you.

Answer 1

Heyya little student!

Sin means
`(opposite )/(hypotenuse)`

5 is the hypotenuse (its opposite to 90 degrees )

So, sin β would be:-

the side opposite to the angle β divided by the hypotenuse of the triangle.

The side opposite to β is 4

and as I said earlier, the hypotenuse is 5

So, sin β would be:-

`(4)/(5)`

I hope it helped you!

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