pair-st-lines

Related Questions

• The equation of one of the line represented by the equation $pq({{x}^{2}}-{{y}^{2}})+({{p}^{2}}-{{q}^{2}})xy=0$, is

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• Condition that the two lines represented by the equation $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$to be perpendicular is

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• Difference of slopes of the lines represented by equation ${{x}^{2}}({{\sec }^{2}}\theta -{{\sin }^{2}}\theta )-2xy\tan \theta +{{y}^{2}}{{\sin }^{2}}\theta =0$is

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• If the lines $(p-q){{x}^{2}}+2(p+q)xy+(q-p){{y}^{2}}=0$ are mutually perpendicular, then

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• If the equation $hxy+gx+fy+c=0$ represents a pair of straight lines, then

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