# [SOLVED] terminal point?

#### lsnyder

I have no idea how to do this. Also I just copied and paste the whole problem word-for-word if any one wonders. I am trying to figure it out myself but I'm totally lost.

Find the terminal point
on the unit circle determined by the given value of
:
(a) If
, then
and
;
(b) If
, then
and
;
(c) If
, then
and
;
(d) If
, then
and
;
(e) If
, then
and
;
(f) If
, then
and
;

#### mollymcf2009

I have no idea how to do this. Also I just copied and paste the whole problem word-for-word if any one wonders. I am trying to figure it out myself but I'm totally lost.

Find the terminal point
on the unit circle determined by the given value of
:
(a) If
, then
and
;
(b) If
, then
and
;
(c) If
, then
and
;
(d) If
, then
and
;
(e) If
, then
and
;
(f) If
, then
and
;
The terminal point coordinates are the (x,y) coordinates of these values. On your unit circle, start at (1,0), if t is positive, your will move around the unit circle counterclockwise to the value of t. If t is negative, you will move clockwise.

I'll give you the first two and then see if you can work the rest:
a) $$\displaystyle t= \frac{\pi}{2} \rightarrow (0,1)$$
b) $$\displaystyle t = - \frac{\pi}{2} \rightarrow (0,-1)$$

Can you see how this works?
Try the others and come back if you get stuck!

lsnyder

#### lsnyder

wow, i feel retarded.
overthought that