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Find the equation of latus rectum of parabola x^2=100y.(a) x=25(b) x=-25(c) y=-25(d) y=25The question was asked during a job interview.The question is from Conic Sections in division Conic Sections of Mathematics – Class 11 |
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Answer» RIGHT OPTION is (d) y=25 The best I can explain: Comparing equation with x^2=4ay. 4a=100 => a=25. LINE passing through focus perpendicular to axis is latus rectum. Equation of latus rectum is y=a => y=25. |
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