$\"\"$

The polar equation is $\"\"$ .

Since polar equation has a cosine function, it is symmetric with respect to the polar axis.

Construct a table and calculate the values of $\"\"$ on $\"\"$ .

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$
$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$

$\"\"$

Graph :

1. Draw a polarcoordinate plane.

2. Plot the polar coordinate points.

3. Then sketch the graph, connecting the points with a smooth curve.

$\"\"$

Graph of the polar equation $\"\"$ :

$\"\"$