pair-st-lines

Related Questions

• $2{{x}^{2}}+7xy+3{{y}^{2}}+8x+14y+\lambda =0$ will represent a pair of straight lines, when $\lambda $=

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• If the slope of one line of the pair of lines represented by $a{{x}^{2}}+4xy+{{y}^{2}}=0$is 3 times the slope of the other line, then a is

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• 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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• 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 pair of lines joining origin to the points of intersection of ${{x}^{2}}+{{y}^{2}}=9$and $x+y=3$ is

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