Answer:
the answer is C
Step-by-step explanation:

If you're going to use technology (Brainly) to solve this problem, you might find you get a quicker answer using the technology of your graphing calculator.
It is often convenient to cast the problem in the form f(θ) = 0. You can do that by adding 1 to both sides of the equation.

Answer:
i belive its 6 please tell me if im wrong
Step-by-step explanation:
Here are the answers: they are in red
I did my best to explain it on graph paper. I hope this helps! Look at the attached picture.