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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 6

  • question_answer
    If \[{{(\vec{a}\times \vec{b})}^{2}}+{{(\vec{a}.\vec{b})}^{2}}=144\]and \[|\vec{a}|=4,\]then\[|\vec{b}|\] is________.

    Answer:

    3


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