Solution
= Solution
The <cross product> is $\mathbf a\times\mathbf b=(1,-7,-3)$. Taking its <dot product> with $\mathbf c$ gives the <scalar triple product>
$$
\boxed{(\mathbf a\times\mathbf b)\cdot\mathbf c=-7+3=-4}.
$$
= Solution
The <cross product> is $\mathbf a\times\mathbf b=(1,-7,-3)$. Taking its <dot product> with $\mathbf c$ gives the <scalar triple product>
$$
\boxed{(\mathbf a\times\mathbf b)\cdot\mathbf c=-7+3=-4}.
$$