pair-st-lines

Related Questions

• The equation $12{{x}^{2}}+7xy+a{{y}^{2}}+13x-y+3=0$ represents a pair of perpendicular lines. Then the value of ‘a’ is

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• The line $x-2y=0$will be a bisector of the angle between the lines represented by the equation ${{x}^{2}}-2hxy-2{{y}^{2}}=0$, if $h=$

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• 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 lines represented by the equation $a{{x}^{2}}(b-c)-xy(ab-bc)+c{{y}^{2}}(a-b)=0$ are

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• Angle between the line joining the origin to the points of intersection of the curves $2{{x}^{2}}+3{{y}^{2}}+10x=0$ and $3{{x}^{2}}+5{{y}^{2}}+16x=0$ is

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