The vector product Problem set A Answers

\(59.8\)

\(38.6\)

\(\begin{pmatrix}6\\-8\\-13\end{pmatrix}\)

\(\begin{pmatrix}11\\-2\\-6\end{pmatrix}\)

\(10\mathbf{i} - 9\mathbf{j} - 7\mathbf{k}\)

\(6\mathbf{i} - 2\mathbf{j} + 15\mathbf{k}\)

\(26.3\) N m

\(\begin{pmatrix}-3\\-4\\12\end{pmatrix}\), or any non-zero multiple of it

1. (a) \(\begin{pmatrix}14\\-11\\-9\end{pmatrix}\)
2. (b) \(\mathbf{a} \cdot (\mathbf{a} \times \mathbf{b}) = 0\)