Newcomb, Simon, 1835-1909 · New York, H. Holt and company · leaf 89
eet the opposite sides. 2. Show that if 31 = 0, 3r = 0, 3r = 0, M = 0, be the equations of the four sides of a quadrilateral in thenormal form, then 3/ _|_ 3f _|_ J/ -I- if = 0 will be the equation of a straight line containing the threepoints in which the external bisectors of the three pairs… … Eqviation of a Circle. 63. Problem. To find the equation of a circle,^Let the co-ordinates of the T centre G of the circle be aand i, and let P be any pointof the circle. Calling X and y the co-ordinates of Py we have, forthe square of the distance be-tween G and P, CP = {x- a) + (y- by. (§ 17) The…
Geometry, Analytic
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