Question

PLEASE HELP ME ANSWER THIS
What is cos 60?

Answer 1

Answer:

The angle with measure 60° is one of those angles that has a well-known cosine value: cos(60°) its C= 1/2.

Step-by-step explanation:

Answer 2

cos(60°) =[0; 2] and cos^2=[0; 4] so cos 60°=1/2