Mathematical Questions and Solutions, from the "Educational Times.", 第 20 巻F. Hodgson, 1874 |
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a+b+c AB² axis b² c² bisects centre chord circular points conic cos² cubic cubic equation curve cusps distance double tangent drawn ellipse envelope equal fixed formulæ G. S. CARR given hence hyperbola hypocycloid hypotenuse intersection J. L. KITCHIN J. W. L. GLAISHER lamina line infinity line of curvature locus M₁ multiplying obtain P₁ parallel perpendicular point at infinity points of contact polyhedron positive Professor WOLSTENHOLME Proposed by Professor prove Pythagorean triangles Question radii radius right angles roots side-difference sides sin² Solution by ASHER Solution by Professor square number straight line Substituting theorem triangle ABC U₁ variable vertex Watson's whence
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