Answer:
3
Step-by-step explanation:
If this isn't a trick question then the answer is 3.
I guess it is simplifying the expression:

Answer:
in this question is hard to identify the value of x when it is not equated to a number so hey you'll just have to add to get 7 x
Answer:
A. They are the same.
Step-by-step explanation:
The sine of any acute angle is equal to its cosine.