conic-section

Related Questions

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• The equation of the normal at the point $(a\sec \theta ,\ b\tan \theta )$ of the curve ${{b}^{2}}{{x}^{2}}-{{a}^{2}}{{y}^{2}}={{a}^{2}}{{b}^{2}}$ is

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• The line $y=mx+c$ touches the parabola ${{x}^{2}}=4ay$ , if

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