JEE Main & Advanced Mathematics Three Dimensional Geometry Question Bank System of Co-ordinates, Direction cosines and direction ratios, Projection

  • question_answer
    Perpendicular distance of the point (3, 4, 5) from the y-axis, is [MP PET 1994, Pb. CET 2002]

    A)            \[\sqrt{34}\]

    B)            \[\sqrt{41}\]

    C)            4

    D)            5

    Correct Answer: A

    Solution :

                Required distance \[=\sqrt{{{3}^{2}}+{{5}^{2}}}=\sqrt{34}\].


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