pair-st-lines

Related Questions

• 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 ${{(x-5)}^{2}}+(x-5)\,(y-6)\,-2\,{{(y-6)}^{2}}=0$ 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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• If the equation $3{{x}^{2}}+xy-{{y}^{2}}-3x+6y+k=0$ represents a pair of lines, then k is equal to

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• If the angle between the pair of straight lines represented by the equation ${{x}^{2}}-3xy+\lambda {{y}^{2}}+3x-5y+2=0$ is ${{\tan }^{-1}}\left( \frac{1}{3} \right)$, where $'\lambda \,'$is a non negative real number. Then$\lambda $is

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