pair-st-lines

Related Questions

• If $y=mx$be one of the bisectors of the angle between the lines $a{{x}^{2}}-2hxy+b{{y}^{2}}=0$, then

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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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• The angle between the two straight lines $2{{x}^{2}}-5xy+2{{y}^{2}}-3x+3y+1=0$ is

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• If the equation $A{{x}^{2}}+2Bxy+C{{y}^{2}}+Dx+Ey+F=0$ represents a pair of straight lines, then ${{B}^{2}}-AC$

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• If one of the line represented by the equation $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$ is coincident with one of the line represented by ${a}'{{x}^{2}}+2{h}'xy+{b}'{{y}^{2}}=0$, then

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