| Cambridge univ, exam. papers - 1847 - 40 pages
...the least value of y which makes the integral part of (V3)* [ cot -^- J not divisible by 6. 14. If the two pairs of opposite sides of a quadrilateral inscribed in a Conic Section be produced to meet, and likewise the two pairs of tangents to the curve drawn from the opposite... | |
| William Thomas Brande, George William Cox - Encyclopedias and dictionaries - 1865 - 978 pages
...applied to the lines of either pair bring them into coincidence with the other pair. For instance, the two pairs of opposite sides of a quadrilateral inscribed in a circle are antiparallel. Two circular sections of a quadric cono whose planes intersect are also sometimes... | |
| Samuel Earnshaw - Differential equations, Partial - 1881 - 602 pages
...conic intercept on has one of two constant and supplemen- the minor directrices lengths which subt.iry values. tend constant and supplementary angles at...VII.). Hence, the circles being coaxal and having 8 for a limiting point :* The opposite intercepts made by any The opposite intercepts made by any two... | |
| British Association for the Advancement of Science - Science - 1904 - 1206 pages
...liaison remarquable qui e'tait nominee par Desargues involution de six points.' He afterwards mentions that the two pairs of opposite sides of a quadrilateral inscribed in a conic can be regarded as a pair of degenerate conies, and that Desargues's theorem is thus an immediate deduction... | |
| British Association for the Advancement of Science. Meeting - Science - 1904 - 1190 pages
...liaison remarquable qui etait nomme'e par Desargues involution de six points.' He afterwards mentions that the two pairs of opposite sides of a quadrilateral inscribed in a conic can be regarded as a pair of degenerate conies, and that Desargues's theorem is thus an immediate deduction... | |
| |