pair-st-lines

Related Questions

• The angle between the lines ${{x}^{2}}-xy-6{{y}^{2}}-7x+31y-18=0$ is

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• If the equation $a{{x}^{2}}+b{{y}^{2}}+cx+cy=0$ represents a pair of straight lines, then

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• The equation ${{x}^{2}}-7xy+12{{y}^{2}}=0$ represents

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• If the sum of slopes of the pair of lines represented by $4{{x}^{2}}+2hxy-7{{y}^{2}}=0$is equal to the product of the slopes, then the value of h is

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• If the ratio of gradients of the lines represented by $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$is 1 : 3, then the value of the ratio ${{h}^{2}}:ab$is

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