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

  • question_answer
    The lines represented by the equation \[a{{x}^{2}}(b-c)-xy(ab-bc)+c{{y}^{2}}(a-b)=0\] are

    A)            \[a(b-c)x-c(a-b)y=0\], \[x+y=0\]

    B)            \[x+y=0\], \[x-y=0\]

    C)            \[a(b-c)x-c(a-b)y=0\], \[x-y=0\]

    D)            None of these

    Correct Answer: C

    Solution :

               From options, proceed as to find the equation represented by them \[a(b-c)x-c(a-b)y=0\] and \[x-y=0\].


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