pair-st-lines

Related Questions

• The equation of pair of straight lines joining the point of intersection of the curve ${{x}^{2}}+{{y}^{2}}=4$ and $y-x=2$ to the origin, is

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• The equation $2{{x}^{2}}+4xy-p{{y}^{2}}+4x+qy+1=0$ will represent two mutually perpendicular straight lines, if

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• The equation $xy+{{a}^{2}}=a(x+y)$ represents

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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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• If $y=mx$be one of the bisectors of the angle between the lines $a{{x}^{2}}-2hxy+b{{y}^{2}}=0$, then

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