$\"\"$

\

Initial point is $\"\"$ and terminal point is $\"\"$ .

\

The component form of $\"\"$ and $\"\"$ is $\"\"$ .

\

Let the points are $\"\"$ and $\"\"$ .

\

The component form $\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

Magnitude of $\"\"$ is $\"\"$ .

\

$\"\"$

\

$\"\"$ . $\"\"$

\

Using the magnitude and component form, find a unit vector $\"\"$ in the direction of $\"\"$ .

\

The unit vector, $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ ; $\"\"$ ; $\"\"$ .