pair-st-lines

Related Questions

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• The equation of second degree ${{x}^{2}}+2\sqrt{2}xy+2{{y}^{2}}+4x+4\sqrt{2}y+1=0$ represents a pair of straight lines. The distance between them is

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• The angle between the lines represented by the equation $4{{x}^{2}}-24xy+11{{y}^{2}}=0$ are

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