MathematicsMedium74×since 2004Q3776If the line x – 2y = 12 is tangent to the ellipse x2a2+y2b2=1{{{x^2}} \over {{a^2}}} + {{{y^2}} \over {{b^2}}} = 1a2x2+b2y2=1 at the point (3,−92)\left( {3, - {9 \over 2}} \right)(3,−29) , then the length of the latus rectum of the ellipse is :A5B9C838\sqrt 383D12212\sqrt 2122Check answerSkip