A general geometry and calculus : including book I. of the general geometry, treating of loci in a plane; and an elementary course in the differential and integral calculus (1881)
Olney, Edward, 1827-1887 · New York : Sheldon and Co. · leaf 142
Fio. 113. 112 PEOPERTIES OF PLANE LOCI. … TA D Fig. 114. Ex. 1. Show that the subnormal to the parabola is constant andequal to half the latus rectum. How can a tangent be drawn to theparabola, geometrically, upon this principle ? \ Ex. 2. Show that the subnormal to the cycloid is {2ry — y^) . 159. Con.—Since DC = PG=-v/CG X GS = \/y(2r…
Geometry, Analytic · Calculus
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