Analytic geometry and principles of algebra (1913)
Ziwet, Alexander, 1853-1928, Hopkins, Louis Allen, joint author, Hedrick, E. R. (Earle Raymond), 1876-1943 · New York, The Macmillan Company · leaf 322
J - J/i . y a … but these three equations are equivalent to only two, since fromany two the third follows immediately.The first of these equations, whichcan be written in the form cy-hz-(cyy-bz,) = 0, represents, since it does not contain x(§ 313), a plane perpendicular to theplane 0^2; and as this plane must…
Geometry, Analytic
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