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Manipal Engineering Manipal Engineering Solved Paper-2010

  • question_answer
    The direction cosines of any normal to the\[xy-\]plane are

    A)  1, 0, 0                                  

    B)  0, 1, 0

    C)  1, 1, 0                  

    D)         0, 0, 1

    Correct Answer: D

    Solution :

    The equation of\[xy-\]plane is\[z=0\] \[\therefore \] Direction cosines of its normal are 0, 0, 1.


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