Answer:
cos -60° =
,
cos 660° = 
Step-by-step explanation:
hope it helps
Let that be

Two vertical asymptotes at -1 and 0

If we simply

- Denominator has degree 2
- Numerator should have degree as 2 and coefficient as 3 inorder to get horizontal asymptote y=3 means the quadratic equation should contain 3x²
- But there should be a x intercept at -3 so one zeros should be -3
Find a equation
Find zeros
Horizontal asymptote
So our equation is

Graph attached
Answer:
angle CAB = 20 degrees
Step-by-step explanation:
Hope this helps you!