JEE Main & Advanced Mathematics Vector Algebra Question Bank Scalar triple product and their applications

  • question_answer
    If \[\mathbf{a},\,\,\mathbf{b},\,\,\mathbf{c}\] are non-coplanar vectors and l is a real number, then the vectors \[\mathbf{a}+2\mathbf{b}+3\mathbf{c},\,\lambda \,\mathbf{b}+4\mathbf{c}\] and \[(2\lambda -1)\mathbf{c}\] are non-coplanar for [AIEEE 2004]

    A)             No value of l

    B)             All except one value of l

    C)             All except two values of l

    D)             All values of l

    Correct Answer: D

    Solution :

                    It is obvious.


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