pair-st-lines

Related Questions

• The equation ${{x}^{2}}+k{{y}^{2}}+4xy=0$represents two coincident lines, if $k =$

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• The distance between the pair of parallel lines ${{x}^{2}}+2xy+{{y}^{2}}-8ax-8ay-9{{a}^{2}}=0$ is

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• If the equation $2{{x}^{2}}-2hxy+2{{y}^{2}}=0$ represents two coincident straight lines passing through the origin, then $h=$

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• The lines ${{a}^{2}}{{x}^{2}}+bc{{y}^{2}}=a(b+c)xy$ will be coincident, if

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• If two of the three lines represented by the equation $a{{x}^{3}}+b{{x}^{2}}y+cx{{y}^{2}}+d{{y}^{3}}=0$ are perpendicular, then

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