Elements of analytical geometry and the differential and integral calculus (1856)
Robinson, Horatio N. (Horatio Nelson), 1806-1867 · Cincinnati : J. Ernst · leaf 39
-l=0. … THE CIRCLE. 31 This last equation shows that the two lines are perpendicularto each other, as proved by (Cor. 2, Prop. V, Chap. I.)* Because a and a are indefinite, we conclude that an infinitenumber of supplemental chords may be drawn in the semicircle,which is obviously true. Scholium. As BDX is…
Geometry, Analytic · Calculus
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