Plane and solid analytic geometry; an elementary textbook (1904)
Ashton, Charles Hamilton, 1866-1936 · New York, C. Scribner's Sons · leaf 169
allelogram formed by the tangentsat the ends of the conjugate diameters PXKX and P2K2. B^^ Y Ji sl—-—y^ \ ^\T^ \ T \ \ y^^^A D z^~~Ks Fig. 82. The sides of the parallelogram are evidently 2 a1 and 2 V.From (7 drop a perpendicular (7M on AB. Its length isthe distance from the origin to the line… … 8. In the hyperbola the parallelogram formed by thetangents at the ends of conjugate diameters has its verticeson the asymptotes. 9. In the hyperbola, the line joining the ends of conju-gate diameters is parallel to one asymptote and is bisectedby the other. 10. Shoiv that the angle between two…
Geometry, Analytic
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