Observe the figure :
\Length of the adjacent side is
.
Length of the hyptonuse side is 
Find opposite side:
\Apply pythagorean theorem :
\
Substiute the values in the formula :
\
.
Simplify :
\
Find the trigonometric functions.
\Substitute
,
and
.
.
.
.
.
.
.
The exact values of the trigonometric functions are
,
,
,
,
and
.