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JEE Main & Advanced Mathematics Vector Algebra Question Bank Vector triple product

  • question_answer
    \[\mathbf{i}\times (\mathbf{j}\times \mathbf{k})=\] [RPET 1988; MP PET 1997]

    A)          1

    B)          0

    C)          ? 1

    D)          None of these

    Correct Answer: B

    Solution :

               \[\mathbf{i}\times \mathbf{j}\times \mathbf{k}=\mathbf{k}\times \mathbf{k}=0\].


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