The point 
Find the value of
by using the relation:

Substitute
for y .

Find the value of
by using the relation:

Substitute
for x .

Find the value of
by using the relation:

Substitute
for x and
for y .

Find the value of
by using the relation:

Substitute
for x and
for y .

Find the value of
by using the relation:

Substitute
for y .

Find the value of
by using the relation:

Substitute
for x.

The exact values of the trigonometric functions are
,
,
,
,
, and
.