Answer
($\frac{\sqrt 2}{2}$,$\frac{\sqrt 2}{2}$)
cos($\frac{\pi}{4}$) = $\frac{\sqrt 2}{2}$
sin($\frac{\pi}{4}$) = $\frac{\sqrt 2}{2}$
tan($\frac{\pi}{4}$) = 1
Work Step by Step
Using the unit circle when t = $\frac{\pi}{4}$,
The (x,y) point is ($\frac{\sqrt 2}{2}$,$\frac{\sqrt 2}{2}$)
Using the coordinate points:
cos($\frac{\pi}{4}$) = $\frac{\sqrt 2}{2}$
sin($\frac{\pi}{4}$) = $\frac{\sqrt 2}{2}$
tan($\frac{\pi}{4}$) = 1
