## Example of circles - common polar coordinate graphs, Mathematics

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Example of Circles - Common Polar Coordinate Graphs

Example: Graph r = 7, r = 4 cos θ, and r = -7 sin θ on similar axis system.

Solution

The very first one is a circle of radius 7 centered at the origin.  The 2nd is a circle of radius 2 centered at (2,0). The third is a circle of radius 7/2 centered at (0, - 7/2). Now here is the graph of three equations.

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