Mathematics

Problem

\mathbf{a}

\mathbf{b}

and

\mathbf{c}

are any three vectors and their inverse are

\mathbf{a}^{-1}

\mathbf{b}^{-1}

and

\mathbf{c}^{-1}

and

[\mathbf{abc}] \neq 0

, then

[\mathbf{a}^{-1} \mathbf{b}^{-1} \mathbf{c}^{-1}]

will be a. zero b. one c. non-zero d.

[\mathbf{abc}]