If \( |\vec{A}|=4,|\vec{B}|=3 \) and \( \theta=60^{\circ} \) in the...

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If \( |\vec{A}|=4,|\vec{B}|=3 \) and \( \theta=60^{\circ} \) in the figure, Find (a) \( \vec{A} \cdot \vec{B} \) (b) \( |\vec{A} \times \vec{B}| \)
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