pair-st-lines

Related Questions

• Two lines represented by equation ${{x}^{2}}+xy+{{y}^{2}}=0$ are

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• The equation $4{{x}^{2}}+12xy+9{{y}^{2}}+2gx+2fy+c=0$ will represents two real parallel straight lines, if

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• The angle between the lines represented by the equation $\lambda {{x}^{2}}+{{(1-\lambda )}^{2}}xy-\lambda {{y}^{2}}=0$, is

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• If the equation $12{{x}^{2}}+7xy-p{{y}^{2}}-18x+qy+6=0$ represents a pair of perpendicular straight lines, then

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

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