conic-section

Related Questions

• The foci of the ellipse $25{{(x+1)}^{2}}+9{{(y+2)}^{2}}=225$ are at

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• Minimum area of the triangle by any tangent to the ellipse $\frac{{{x}^{2}}}{{{a}^{2}}}+\frac{{{y}^{2}}}{{{b}^{2}}}=1$ with the coordinate axes is

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• The line $y=2x+c$ is tangent to the parabola ${{y}^{2}}=4x$ , then $c=$

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• The equation to a parabola which passes through the intersection of a straight line $x+y=0$ and the circle ${{x}^{2}}+{{y}^{2}}+4y=0$ is

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• The equation of a straight line drawn through the focus of the parabola ${{y}^{2}}=-4x$ at an angle of 120° to the x-axis is

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