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

  • question_answer
    The equation \[xy+{{a}^{2}}=a(x+y)\] represents [MP PET 1991]

    A)            A parabola                            

    B)            A pair of straight lines

    C)            An ellipse                              

    D)            Two parallel straight lines

    Correct Answer: B

    Solution :

               \[xy+{{a}^{2}}=a(x+y).\]Firstly always check for pair of straight lines i.e., \[\Delta =0\]


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