Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 225
cute angle, and anegative slope to an obtuse angle. Hence the upper portionsof conjugate diameters always lie on opposite sides of theminor axis ; for example, CP3 and CQ in Fig. 91. 102. The Tangent at the Extremity of any Diameter isParallel to the Conjugate Diameter. Let P1P2 (Fig. 92) be any… … Fig. 92. To find the slope mo of CQi, we have, by substitution in[40], § 101, ll m2 = — b^ or The tangent at Pj is (Da __ba -Xl ^yi x,x3? 1 yiy. = 1, and its slope, therefore , is b^x, This is equal to mo. Hence the theorem is proved. 103. Supplemental Chords. Chords drawn from the same point on an…
Geometry, Analytic
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