pair-st-lines

Related Questions

• 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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• Pair of straight lines perpendicular to each other represented by

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

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• If the angle between the lines represented by the equation ${{y}^{2}}+kxy-{{x}^{2}}$${{\tan }^{2}}A=0$be $2A$, then $k=$

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