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JEE Main & Advanced Mathematics Vector Algebra Question Bank Modulus of vector Algebra of vectors

  • question_answer
    If the position vectors of the points A and B be \[2\,\mathbf{i}+3\,\mathbf{j}-\mathbf{k}\] and \[-2\,\mathbf{i}+3\,\mathbf{j}+4\,\mathbf{k},\] then the line AB is parallel to

    A) xy-plane

    B) yz-plane

    C) zx-plane

    D) None of these

    Correct Answer: C

    Solution :

    \[\overrightarrow{AB}=-4\mathbf{i}+5\mathbf{k}\], which is a vector lying in a plane parallel to \[xz-\]plane.    


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