The elements of plane analytic geometry. A text-book including numerous examples and applications, and especially designed for beginners (1903)
Briggs, George R. (George Russell), b. 1853, Bôcher, Maxime, 1867-1918 · New York, J. Wiley & sons; [etc., etc.] · leaf 145
e fulfilled that the line f +Z = i +m n may be tangent to the ellipse oc^ y ~ + I2 = • Ans. __+__ = I.m- n^ (12.) Prove that if with the coordinates of any point of anellipse as semi-axes, a concentric ellipse be described with itsaxes in the same direction, the lines which join the extremitiesof… … or gous to that shown in thelast section for the ellipse.Show by this methodthat the equation of they^ tangent at J^^ is •^1 ^ _j,y_ J. a If- and of the normal. (j-7i)=-^j(^-^i), (0 (2)(3) Note. These equations evidently differ from the correspond-ing equations for the ellipse only in the sign of…
Geometry, Analytic -- Plane
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