Answer:
The answer is C.
Step-by-step explanation:
You only need the answer.

hmm, seems that we can say that the square root thing is the g(x)
I would say

and

we could also have

and

or

and

there are many posibilities
500 let me know if it’s right i’m not the best at math
There are 8 equal parts. Each part is 1/8 of the whole 8/8
Recall the important identities:
i)

, the difference of squares formula.
ii)

, for any angle x.
Then,
from i)

then, from ii), we have

Answer: cos(theta)