pair-st-lines

Related Questions

• If $L{{x}^{2}}-10xy+12{{y}^{2}}$$+5x-16y-3=0$ represents a pair of straight lines, then $L$ is

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• One of the lines represented by the equation ${{x}^{2}}+6xy=0$ is

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• A second degree homogenous equation in x and y always represents

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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 lines joining the points of intersection of line $x+y=1$ and curve ${{x}^{2}}+{{y}^{2}}-2y+\lambda =0$ to the origin are perpendicular, then the value of $1/\sqrt{10}$ will be

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