Question

CALCULATOR COLOR THEME QQ ZOOM 5. Express the cos A as a ratio. 12 А B un 13

Answer 1

Cos function (or cosine function) in a triangle is the ratio of the adjacent side to that of the hypotenuse.

`\begin{gathered} \cos A=(AB)/(AC) \\ \cos A=(12)/(13) \end{gathered}`

The answer would be cos A = 12/13