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JEE Main & Advanced Mathematics Vector Algebra Question Bank Numerical Value Type Questions - Vector Algebra

  • question_answer
    If \[|\vec{a}|\,=5,\,\,|\vec{b}|\,=4,\,\,|\vec{c}|\,=3\] and \[\vec{a}+\,\vec{b}+\,\vec{c}=0\] then the value of \[|\vec{a}\cdot \vec{b}\,+\vec{b}\cdot \vec{c}+\,\vec{c}\cdot \vec{a}|,\] is

    Answer:

    25


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