if you don't have a Unit Circle yet, this is a good time to get one, you can find many online, check maybe in yahoo images, or google images.
Check the picture below.
notice the section encircled in purple.
Answer:hehdhfhdhd
Step-by-step explanation:
Hdhdhhs
Answer:
y = -3x - 1
Step-by-step explanation:
don't mind this hebusesjaygsnzoinske
Answer:
0
Step-by-step explanation:
We can write the equation in a simpler form so it doesn't look like a mess of numbers:

Because we are just adding three terms together and then subtracting those exact terms, we have the answer as 0.