Plane and solid analytic geometry; an elementary textbook (1904)
Ashton, Charles Hamilton, 1866-1936 · New York, C. Scribner's Sons · leaf 162
s,and as one diameter approaches the major axis, the otherwill approach the minor axis from one side or the other.The limiting case is seen to be the two axes. They con-form to the definitionof conjugate diameters,since every line paral-lel to one is bisectedby the other. Theyare the only… … Fig. 79. 146 ANALYTIC GEOMETRY [Ch. XI, § 80 coincident with the minor axis and also revolve in thepositive direction, since we have seen that the two mustpass through different quadrants. Let the student show that the angle PXCPV in whichthe minor axis lies, will always be obtuse. If, in the…
Geometry, Analytic
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