{"id":6805,"date":"2021-10-21T17:44:25","date_gmt":"2021-10-21T12:14:25","guid":{"rendered":"https:\/\/mathemerize.com\/?p=6805"},"modified":"2021-10-25T00:04:39","modified_gmt":"2021-10-24T18:34:39","slug":"find-the-asymptotes-of-the-hyperbola-2x2-5xy-2y2-4x-5y-0-find-also-the-general-equation-of-all-the-hyperbolas-having-the-same-set-of-asymptotes","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/find-the-asymptotes-of-the-hyperbola-2x2-5xy-2y2-4x-5y-0-find-also-the-general-equation-of-all-the-hyperbolas-having-the-same-set-of-asymptotes\/","title":{"rendered":"Find the asymptotes of the hyperbola \\(2x^2 + 5xy + 2y^2 + 4x + 5y\\) = 0. Find also the general equation of all the hyperbolas having the same set of asymptotes."},"content":{"rendered":"
Let \\(2x^2 + 5xy + 2y^2 + 4x + 5y + k\\) = 0 be asymptotes. This will represent two straight line<\/p>\n
so \\(abc + 2fgh – af^2 – bg^2 – ch^2\\) = 0 \\(\\implies\\) 4k + 25 – \\(25\\over 2\\) – 8 – \\(25\\over 4\\)k = 0<\/p>\n
\\(\\implies\\) k = 2<\/p>\n
\\(\\implies\\) \\(2x^2 + 5xy + 2y^2 + 4x + 5y + 2\\) = 0 are asymptotes<\/p>\n
\\(\\implies\\) (2x+y+2) = 0 and (x+2y+1) = 0 are asymptotes<\/p>\n
and\u00a0 \\(2x^2 + 5xy + 2y^2 + 4x + 5y + c\\) = 0 is general equation of hyperbola.<\/p>\n
Angle between asymptotes of hyperbola xy=8 is<\/a><\/p>\n Find the normal to the hyperbola \\(x^2\\over 16\\) \u2013 \\(y^2\\over 9\\) = 1 whose slope is 1.<\/a><\/p>\n Find the equation of the tangent to the hyperbola \\(x^2 \u2013 4y^2\\) = 36 which is perpendicular to the line x \u2013 y + 4 = 0<\/a><\/p>\n The eccentricity of the conjugate hyperbola to the hyperbola \\(x^2-3y^2\\) = 1 is<\/a><\/p>\n