Question

If t is a real number and P =(x,y) is a point on the unit circle that corresponds to t, then x is the _ of t and y is the _ of t

Answer 1

One of them is sine, and one is cosine

Answer 2

right have you ever seen the unit circle?

Answer 3

like you should know what the x-coordinate represents and y-coordinate represents if you do.
If you don't then I can give you a drawing and ask you a few questions so you can determine which is which

Answer 4

the unit circle is a circle with radius 1 and center (0,0)