Question

How do you find the point (x,y) on the unit circle that corresponds to the real number `t=pi`?

Answer 1

Coordinates of point P on unit circle is `(-1,0)`

Explanation:

The x - coordinate of point P on unit circle is `cos theta`

`= cos pi = -1`.

The y -coordinate of point P on unit circle is `sin theta`

`= sin pi = 0`.

Coordinates of point P on unit circle is `(-1,0)` [Ans]