pair-st-lines

Related Questions

• If the equation $2{{x}^{2}}-2hxy+2{{y}^{2}}=0$ represents two coincident straight lines passing through the origin, then $h=$

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• The equation of the lines passing through the origin and having slopes 3 and $-\frac{1}{3}$ is

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• If the bisectors of the angles between the pairs of lines given by the equation $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$ and $a{{x}^{2}}+2hxy+b{{y}^{2}}+\lambda ({{x}^{2}}+{{y}^{2}})=0$ be coincident, then $\lambda =$

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• The angle between the lines represented by the equation $({{x}^{2}}+{{y}^{2}})\sin \theta +2xy=0$ is

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• The equation ${{x}^{2}}-7xy+12{{y}^{2}}=0$ represents

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