Question

11. The trigonometric ratio of cos B isPYTHAGOREAN TRIPLE PROBLEMB13590°A125/1212/135/1313/5

Answer 1

From the given right-angled triangle, we have the following:

Hypothenuse side = 13

Opposite side = 12

Adjacent side = 5

Solution

The trigonometric ratio of cos B can be found using the relationship:

$\cos \text{ B = }\frac{Adjacent}{Hypothenus}$

By substituting, we have:

$cos\text{ B = }\frac{5}{13}$

Hence, the answer is 5/13 (option C)