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 .
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 .
The point in rectangular coordinates is .
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