Answer:
12/13
Step-by-step explanation:
We know that cosine is the adjacent side divided by the hypotenuse in a right triangle.
The adjacent side to angle C is BC
The hypotenuse is AC because it is opposite to the right angle
So...
cosine is (BC)/(AC)
36/39
12/13
Answer:

Step-by-step explanation:
Hope this helps you.
Answer:
Answer is A
Step-by-step explanation:
Answer:
Take the coefficient of ''n'', divide it by 2, and raise it to the second power;


