Question

Find COS

out of
Instructions: Find the value of the trigonometric ratio. Make sure to
simplify the fraction if needed.
A
9
B
41
40
С
Cos A

Answer 1

`(9)/(41)`

Explanation:

The ratio cosine tell us that

• In a right angled triangle, the cosine of an angle is the side adjacent to the angle divided by the hypotenuse of the triangle.

In other words,

`\cos(x) = (adj)/(hyp)`

The side adjacent to angle a is 9. The hypotenuse is 41.

So

`\cos(a) = (9)/(41)`