A general geometry and calculus : including book I. of the general geometry, treating of loci in a plane; and an elementary course in the differential and integral calculus (1881)
Olney, Edward, 1827-1887 · New York : Sheldon and Co. · leaf 64
Pig. 35 Birailar triangles, IGCG KOGO … Q. E. D. 2nd. In the Hyperbola the demonstration isessentially the same. Thus, in Fig. 36, LO =EM - IG FE — FG 2LO + LK = KOKO = GO. Hence and GOGF IG CG GO + FG == FO,= the eccentricity. By definition = the characteristic ratio (Bos-Now, hy similar triangles, Q. E. D. Fig. 36. CG covichs ratio)IG…
Geometry, Analytic · Calculus
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