pair-st-lines

Related Questions

• Angle between the lines represented by the equation ${{x}^{2}}+2xy\sec \theta +{{y}^{2}}=0$ is

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• Acute angle between the lines represented by $({{x}^{2}}+{{y}^{2}})\sqrt{3}=4xy$ is

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• The equation of lines passing through the origin and parallel to the lines $y={{m}_{1}}x+{{c}_{1}}$ and $y={{m}_{2}}x+{{c}_{2}}$ is

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• The equation of the lines passing through the origin and parallel to the lines represented by the equation $2{{x}^{2}}-xy-6{{y}^{2}}+7x+21y-15=0$, is

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• The equation of one of the line represented by the equation ${{x}^{2}}+2xy\cot \theta -{{y}^{2}}=0$, is

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