An elementary treatise on modern pure geometry (1893)
Lachlan, Robert · London, New York, Macmillan and Co. · leaf 281
ving the circleof reciprocation for their radical circle, and intersecting in thepoint-pairs P, P; Q, Q; R, R; which will evidently be the re-ciprocals of the given circles. Again the reciprocals of the groupof tangent circles of the given circles will obviously be the groupof circumcircles of the… … THE CASE OF A CIRCULAR TRIANGLE. 265 Let T, T; T^, T(\ T^, T,; T3, T, denote the pairs of tangentcircles of the given system; and let H, H; H^, H^ \ H„, HJ;Hs, H3 denote the pairs of Hart circles of the system. Then, ifP, Q, R be the positive points of the pairs of points in which thereciprocal…
Geometry
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