Step 1: \ \
\The polar equation is
. \ \
\ \
Convert the equation into the conic form
. \ \
where
is the eccentricity and
is the distance between the focus(pole) and the directrix. \ \
\ \
\ \
Compare with
. \ \
\ \
Since
, the equation represents an ellipse. \ \
Step 2: \ \
\Graph the above polar equation using some polar coordinates. \ \
\Construct a table for different values of
.
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Graph:
\Draw the polar coordinate plane.
\Plot the polar coordinates found in the table.
\Connect the points with smooth curve. \ \
\ \ \
Observe the graph: The ellipse eccentricity
and distance
.
Solution: \ \
\Eccentricity
. \ \
Distance
. \ \
\ \