pair-st-lines

Related Questions

• The gradient of one of the lines ${{x}^{2}}+hxy+2{{y}^{2}}=0$ is twice that of the other, then $h =$

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• The lines joining the origin to the points of intersection of the curves $a{{x}^{2}}+2hxy+b{{y}^{2}}+2gx=0$ and $a'{{x}^{2}}+2h'xy+b'{{y}^{2}}+2g'x=0$ will be mutually perpendicular, if

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• The equation $4{{x}^{2}}-24xy+11{{y}^{2}}=0$represents

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• The equation $2{{x}^{2}}+4xy-k{{y}^{2}}+4x+2y-1=0$ represents a pair of lines. The value of k 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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