What is the order of the product
\( \begin{bmatrix} x & y & z \end{bmatrix} \begin{bmatrix} a & h & g \\\ h & b & f \\\ g & f & c \end{bmatrix} \begin{bmatrix} x \\\ y \\\ z \end {bmatrix} \) ?
1
3 × 1
2
1 × 1
3
1 × 3
4
3 × 3
What is the order of the product
\( \begin{bmatrix} x & y & z \end{bmatrix} \begin{bmatrix} a & h & g \\\ h & b & f \\\ g & f & c \end{bmatrix} \begin{bmatrix} x \\\ y \\\ z \end {bmatrix} \) ?