The function is and the point is
.
Find the vectors and
.
The frenet serret formulas are and
.
Consider .
.
Substitute and
in
.
The value of at the point
.
Substitute .
.
Consider .
.
.
For ,
.
Substitute and
in
.
.
Find the value of .
Since .
For ,
.
Substitute and
in
.
.
,
and
.