conic-section

Related Questions

• The sum of focal distances of any point on the ellipse with major and minor axes as 2a and 2b respectively, is equal to

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• If $(0,\ \pm 4)$ and $(0,\ \pm 2)$ be the foci and vertices of a hyperbola, then its equation is

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• The line $lx+my+n=0$ is a normal to the ellipse $\frac{{{x}^{2}}}{{{a}^{2}}}+\frac{{{y}^{2}}}{{{b}^{2}}}=1$ , if

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• If the line $lx+my+n=0$ is a tangent to the parabola ${{y}^{2}}=4ax$ , then locus of its point of contact is

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• If the eccentricities of the hyperbolas $\frac{{{x}^{2}}}{{{a}^{2}}}-\frac{{{y}^{2}}}{{{b}^{2}}}=1$ and $\frac{{{y}^{2}}}{{{b}^{2}}}-\frac{{{x}^{2}}}{{{a}^{2}}}=1$ be $e$ and ${{e}_{1}}$, then $\frac{1}{{{e}^{2}}}+\frac{1}{e_{1}^{2}}=$

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