pair-st-lines

Related Questions

• If the equation $a{{x}^{2}}+b{{y}^{2}}+cx+cy=0$ represents a pair of straight lines, then

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

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• If the lines $(p-q){{x}^{2}}+2(p+q)xy+(q-p){{y}^{2}}=0$ are mutually perpendicular, then

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• One bisector of the angle between the lines given by $a{{(x-1)}^{2}}+2h\,(x-1)y+b{{y}^{2}}=0$ is $2x+y-2=0$. The other bisector is

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• The equation of second degree ${{x}^{2}}+2\sqrt{2}xy+2{{y}^{2}}+4x+4\sqrt{2}y+1=0$ represents a pair of straight lines. The distance between them is

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