MATH-43,F17,Sec. 10.7.doc - MATH-43 Sec 10.7 Polar...

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MATH-43 Sec. 10.7 Polar Coordinates So far, we have been representing graphs of equations as collection of points y x , . In this section, we will study a different system called the polar coordinate system. To form the polar coordinate system in the plane, fix a point O , called the pole (or origin ), and construct from O an initial ray called the polar axis , as shown below. Then each point P in the plane assigned polar coordinates , r as follows. 1. r directed distance from O to P 2. directed angle , counterclockwise from polar axis to segment P
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