pair-st-lines

Related Questions

• If $(a+3b)(3a+b)=4{{h}^{2}}$, then the angle between the lines represented by $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$ is

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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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• Two lines are given by ${{(x-2y)}^{2}}+k(x-2y)=0$. The value of k so that the distance between them is 3, is

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• If the bisectors of the angles between the pairs of lines given by the equation $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$ and $a{{x}^{2}}+2hxy+b{{y}^{2}}+\lambda ({{x}^{2}}+{{y}^{2}})=0$ be coincident, then $\lambda =$

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• If the ratio of gradients of the lines represented by $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$is 1 : 3, then the value of the ratio ${{h}^{2}}:ab$is

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