pair-st-lines

Related Questions

• If the slope of one of the lines given by $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$is 5 times the other, then

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• The pair of straight lines joining the origin to the points of intersection of the line $y=2\sqrt{2}x+c$and the circle ${{x}^{2}}+{{y}^{2}}=2$are at right angles, if

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• The condition of representing the coincident lines by the general quadratic equation $f(x,\,y)=0$, is

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• The equation of pair of straight lines perpendicular to the pair $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$ is

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• The equation of second degree ${{x}^{2}}+2\sqrt{2}xy+2{{y}^{2}}+4x+4\sqrt{2}y+1=0$ represents a pair of straight lines. The distance between them is

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