Which of the following is the unit vector perpendicular to $\vec{A}$ and $\vec{B}$?

  • A
    $\frac{\hat{A} \times \hat{B}}{AB \sin \theta}$
  • B
    $\frac{\hat{A} \times \hat{B}}{AB \cos \theta}$
  • C
    $\frac{\vec{A} \times \vec{B}}{AB \sin \theta}$
  • D
    $\frac{\vec{A} \times \vec{B}}{AB \cos \theta}$

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