Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 82
l and plotting the second eipiation. 34. 11-2 = log(x -f- ;:i); ?/i = log Xi. 36. ?/ -f 3 == 2^ t •»; y.^ = 2a. 35. 2/ = 3 sin(x + 5); 2/1 = 3 sin Xi. 37. y + 5 = tau(x - 3); yi = tan Xi. 1, obtain 3.2 ,,2From the common eciuation of the hyperbola,-— — -- the equation of the hyperbola referred to… … sm g sm g The condition tan a tan athe equation of the hyperbola referred to the oblique axes becomes Fic. f>i».renders the coefficient of Xij/i zero, and 68 ANALYTIC GEOMETRY .siii-c l./r = 1- Since only values uf a and a less than 180° need be considered, the con-dition tan a tan a = - shows…
Geometry, Analytic
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