Question
If the volume of the parallelepiped formed by three non-coplanar vectors $\vec{a}$, $\vec{b}$, and $\vec{c}$ is 4 cubic units, then $[\vec{x}, \vec{b}, \vec{c}, \vec{x}, \vec{q}] = $
If the volume of the parallelepiped formed by three non-coplanar vectors $\vec{a}$, $\vec{b}$, and $\vec{c}$ is 4 cubic units, then $[\vec{x}, \vec{b}, \vec{c}, \vec{x}, \vec{q}] = $