pair-st-lines

Related Questions

• If the lines joining origin to the points of intersection of the line $fx-gy=\lambda $ and the curve ${{x}^{2}}+hxy-{{y}^{2}}+gx+fy=0$ be mutually perpendicular, then

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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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• If $4ab=3{{h}^{2}}$, then the ratio of slopes of the lines represented by the equation $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$ will be

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• If in general quadratic equation $f(x,\,y)=0$, $\Delta =0$ and ${{h}^{2}}=ab$, then the equation 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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