PreCalc
posted by Thomas .
Can anyone direct me to learn more about polar coordinates. I'm in online college course and really am confused. In high school, I never heard of polar coordinates.
Like they say is the following the graph of point (3,15) and show it on polar gridI don't get it at all. Please direct me somewhere to learn this or can you give me any easy explanationthank you

Salmon Khan in his awardwinning
Khanacademy videos gives a very simpletounderstand introduction to polar coordinates.
http://www.khanacademy.org/video/polarcoordinates1?playlist=Precalculus
click on "next video" to go through the lessons
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