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JCECE Medical JCECE Medical Solved Paper-2013

  • question_answer
    If the three vectors A,B and C satisfy the relation \[A.B=0\]and \[A.C=0,\]then vector A  is parallel to

    A)  A                   

    B)  B

    C) \[A\times B\]                

    D) \[~B\times C\]

    Correct Answer: D

    Solution :

     Given.\[A.B=0,\,\]   \[\therefore \] A is \[\bot \]to B also \[A.C=0,\] \[\therefore \] A is \[\bot \]to C As \[B\times C\]is \[\bot \] to both B and C, so \[B\times C\]is parallel to A.


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