The point in polar co-ordinates is
.
Steps to plot the point :
\1. First draw a ray with an angle
.
2. Then go out a distance of 4 units along the ray and plot the point
.
Graph of the point
.
.gif\")
\
The point in polar co-ordinates is
.
Let the point be
.
Conversion of polar - to - rectangular coordinates :
.
Substitute the values
in above conversion.


The point
in rectangular coordinates is
.
Graph of the point
.
.gif\")
The point
in rectangular coordinates is
.