Question

trigonometric ratios in right triang... find $\cos(\beta)$ in the triangle.

Explanation:

Step1: Recall the cosine formula

In a right - triangle, $\cos(\theta)=\frac{\text{adjacent}}{\text{hypotenuse}}$.

Step2: Identify the adjacent side and hypotenuse for angle $\beta$

For angle $\beta$, the adjacent side is $BC = 8$, and the hypotenuse is $AB=17$.

Answer:

$\frac{8}{17}$