Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 135
e of centres ; but it willnot be the equation of the common chord, for the circles haveno common chord. We shall call this line the radical axis of the two circles.A.S obviously this equation can always be found, every pairof circles have a radical axis, which is their common chordif they… … FlO. 57. Let Pi(xi, yi) be any point of the locus, a and b being thetangents to the circles (1) and (2) respectively. If Lj andLz are the respective lengths of a and b, by the hypothesis, U = U, or Li^ - U^ = 0. By §57, Lr = Xi^ + yi^ + 2Gxi + 2 Fy, + C,L/ = Xi2 + yi2 + 2 Gx, + 2 Fyi + C, whence 2…
Geometry, Analytic
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
