The vector is
at
.
(a)
\Graph:
\Graph the vectors 

(b)
\The vector is
.
Find the value of
.
.
Therefore,
.
(c)
\Graph the position vector
and the tangent vector
at
.
Substitute
in
.
.
Substitute
in
.
.
Graph :
\Graph of the vectors
and
.
.gif\")
(a)
\Graph:
\Graph the vectors
.

(b)
.
(c)
\Graph :
\Graph of the vectors
and
.
.