the form as may also be seen at once from the preceding figure.This form of the equation of the circle is the onegenerally used, being the simplest. Cor. 2. If the centre of the circle be at the point(/, 0), then a = r, 6 = 0; and the equation l)ecomes y … (^-r)2 + (i/-0)2 = r2,or X- + IJ- - 2rx = 0,a form which may also be obtained from the pre-ceding figure. 84 Analytical Geometry. 34. To interpret geometrically the equationx^ + if + 2Ax + 2Bij t C = 0,where A, B and C are constants, axes being rectangular.This equation may be written in the formx^…
Geometry, Analytic
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