Abstract
This chapter discusses polar coordinates. The polar coordinates system is the most important way of representing points in a plane. In rectangular coordinates , the graph of the equation y = f(x) or, more generally, f(x, y) = 0 is defined as the set of points (x, y) whose coordinates satisfy the equation. In polar coordinates, however, each point in the plane has an infinite number of representations. The chapter further presents graphs of some general curves in polar coordinates and illustrates the points of intersection of graphs of polar equations with the help of equations. The chapter further explains the derivation of a method for calculating the area of a region whose boundary is given in polar coordinates.
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