pair-st-lines

Related Questions

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

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• The equation $2{{y}^{2}}-xy-{{x}^{2}}+6x-8=0$ represents

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• The lines represented by the equation $9{{x}^{2}}+24xy+16{{y}^{2}}+21x+28y+6=0$ are

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• The angle between the pair of lines given by equation ${{x}^{2}}+2xy-{{y}^{2}}=0$, is

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• If the equation $12{{x}^{2}}+7xy-p{{y}^{2}}-18x+qy+6=0$ represents a pair of perpendicular straight lines, then

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