Ziwet, Alexander, 1853-1928, Hopkins, Louis Allen, joint author · New York, The Macmillan company · leaf 258
babout: (a) Ox, (6) Oy. 9. How are the following surfaces of revolution generated ? (a) y^+z^=x>. (6) 2x^+2y^-Hz=0. (c) x^+y^-ifi-2x+i=0. 10. Find the equation of the surface generated by the revolution ofthe ellipse x^ + iy^— 4x = 0: (a) about the major axis; (6) about theminor axis; (c) about… … Fig. 128 on the axes Ox, Oy are ± o, ± 6; the axis Oe does not intersectthe surface. 263. Cross-Sections. The plane Oxy intersects the surfacein the ellipse i»2 - 1^/2 « jl.r^i. cross-sections perpendicular to Oz give ellipses with ever-increasing semi-axes. The planes Oyz and Ozx intersect the…
Geometry, Analytic
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