Question

How do you find the point (x,y) on the unit circle that corresponds to the real number `t=pi/4`?

Answer 1

`color(blue)((x,y) = (sqrt2/2, sqrt2/2)` or `color(blue)((1/sqrt2, 1/sqrt2)`

Explanation:

`t = pi/4`

From the above diagram,

`color(blue)((x,y) = (sqrt2/2, sqrt2/2)` or `color(blue)((1/sqrt2, 1/sqrt2)`