pair-st-lines

Related Questions

• The angle between the lines ${{x}^{2}}-xy-6{{y}^{2}}-7x+31y-18=0$ is

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

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• The equation ${{x}^{2}}-7xy+12{{y}^{2}}=0$ represents

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• If the equation $a{{x}^{2}}+2hxy+b{{y}^{2}}=0$has the one line as the bisector of angle between the coordinate axes, then

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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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