11th Class Mathematics Sample Paper Mathematics Olympiad - Sample Paper-13

  • question_answer
    The foci of an ellipse are \[(0,\pm 4)\] and the equation for the directories are\[y=\pm \text{ }9\]. The equation for the ellipse is

    A)  \[5\times 2+9{{y}^{2}}=4~~\]

    B)  \[2{{x}^{2}}-6{{y}^{2}}=28~\]

    C)  \[6{{x}^{2}}+3{{y}^{2}}=45\]

    D)  \[9{{x}^{2}}+5{{y}^{2}}=180\]

    Correct Answer: D


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