Answer: i dont know
Step-by-step explanation:
I’m am almost sure it’s true it should look like this X
__ > 7
2+4
Answer:

Step-by-step explanation:
We want to solve
, where
.
We rewrite in terms of sine and cosine.


Use the Pythagorean identity:
.




This is a quadratic equation in
.
By the quadratic formula, we have:




or 
or 
or 
When
, 
on the interval
.
When
,
is not defined because 
The answer is C. (x+6)(x+8)