Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 230
n, by § 102, PiN is parallel to Q1Q2and, hence, the angle CPiN equals ^. Therefore, CN CN^^^^CP^^V It remains to find the value of CN. Now the equation ofthe tangent PiN is THE ELLIPSE. 215 a- bor, cleared of fractions, b-XiX + aYiy = a^b.By § 32, the length of the normal from the centre uponthis… … Consider the parallelognun GHKL formed by drawing tan-gents at the extremities of a pair of conjugate diameters, 216 PLANE ANALYTIC GEOMETRY. PiPo and QiQ,. Since (§102) GL and HK are parallel toQ1Q2 and KL and GH parallel to PiPo, and since, furthei-,C bisects PiPo and Q1Q2, it follows tliat tlie…
Geometry, Analytic
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
