Answer:
π (or 270°)
Step-by-step explanation:
I use the trick with the coordinates.
(0, -1)
cos270° = 0 (the x-coordinate)
sin270° = -1 (the y-coordinate)
This trick works depending on the radius.
Answer:
The second answer.
Step-by-step explanation:
An x squared term cannot be combined with a term with just an x.
Answer:
1. Adjacent 2. Vertical 3. Vertical 4. Neither 5. Adjacent
Step-by-step explanation: