Newcomb, Simon, 1835-1909 · New York, H. Holt and company · leaf 174
ee from (b) and(c). Cor. From what has been shown in the preceding section,it is evident tliat this equation, referred to any pair of conju-gate diameters as axes, is hx ky 1. (23) 145. Locus of Interseciion of Two Tangents. het{x%y^)be the co-ordinates of any fixedpoint Q through which the chordof… … 1; but since (x\ y) is a point on the chord, we have the con-dition x^x yy _ a ^ b- ~ ^ which the co-ordinates of tlie point of intersection must alwayssatisfy. Hence, regarding ic, «/ as variables and omittingthe accents, the equation of the locus of the point of intersec-tion of the two tangents…
Geometry, Analytic
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