Step 1: \ \
\The rectangular coordinate
in the second quadrant. \ \
\ \
Polar coordinate is
. \ \
In this case
lies in second quadrant. \ \
Find the value of
. \ \
\ \


\ \
Step 2: \ \
\Find the value of
. \ \
\ \


\ \
\ \
Polar coordinates:
. \ \
\ \ Solution:
\Polar coordinates: 
\
\ \