For any three vectors \( \vec{a}, \vec{b}, \vec{c} \), the value of...
For any three vectors \( \vec{a}, \vec{b}, \vec{c} \), the value of
\( \mathrm{P} \) \( [\vec{a}-\vec{b}, \vec{b}-\vec{c} \vec{c}-\vec{a}] \), is
(1) 0
(2) \( \left[\begin{array}{lll}a & \vec{b} & c\end{array}\right] \)
(3) \( -\left[\begin{array}{lll}a & b & c\end{array}\right] \)
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