Answer:
A
Step-by-step explanation:
In order for a graph to be a function, it has to only cross the vertical (up and down) lines that it covers once. Since this is an angle, it crosses all the lines in two different places, and isn't a function.
Answer:
The answer should be 5.003, you can round if you want to 5
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Given
2cosΘ -
= 0 ( add
to both sides )
2cosΘ =
( divide both sides by 2 )
cosΘ = 
Since cosΘ > 0 then Θ is in first and fourth quadrants, hence
Θ =
(
) = 
OR
Θ = 2π -
= 
solutions are Θ =
, 