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JEE Main & Advanced Sample Paper JEE Main Sample Paper-34

  • question_answer
    If the straight lines \[\frac{x-1}{k}=\frac{y-2}{2}=\frac{z-3}{3}\], and \[\frac{x-2}{3}=\frac{y-3}{k}=\frac{z-1}{2}\] intersect at a point, then the integer k is equal to

    A)  \[-5\]                   

    B)  5

    C)   2                                           

    D)  \[-2\]

    Correct Answer: A

    Solution :

    \[\left| \begin{matrix}    1 & 1 & -2  \\    k & 2 & 3  \\    3 & k & 2  \\ \end{matrix} \right|=0\]


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