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JEE Main & Advanced Mathematics Pair of Straight Lines Question Bank Equation of Pair of Straight Lines

  • question_answer
    The equation \[{{y}^{2}}-{{x}^{2}}+2x-1=0\] represents [MNR 1991]

    A)            A pair of straight lines      

    B)            A circle

    C)            A parabola                            

    D)            An ellipse

    Correct Answer: A

    Solution :

               Using condition\[\Delta =0\].


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