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J & K CET Engineering J and K - CET Engineering Solved Paper-2005

  • question_answer
    A line joining the points \[(1,2,0)\] and \[(4,13,5)\] is perpendicular to a plane. Then, the coefficients of x, y and z in the equation of the plane are; respectively

    A)  \[5,15,5\]       

    B)  \[3,11,5\]

    C)  \[3,-11,5\]      

    D)  \[-5,-15,5\]

    Correct Answer: B

    Solution :

    The coefficient of x,y and z in the equation of the plane are direction ratios of the line joining the points \[(1,2,0)\] and \[(4,13,5)\]. \[\therefore \] Direction ratios \[=(4-1,13-2,5-0)\] \[=(3,11,5)\]


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