CAPE Pure Mathematics Unit 2 · May/June 2016 · Paper 1 · Question Q38

The FIRST ROW of the product PQ of the two 3 \times 3 matrices P = \begin{pmatrix} 2 & 3 & 1 \\ 5 & -6 & 5 \\ -1 & 2 & 3 \end{pmatrix} and Q = \begin{pmatrix} 2 & 1 & 3 \\ 5 & 0 & -1 \\ -3 & -2 & 4 \end{pmatrix} is

1. (A)\begin{pmatrix} 22 & -4 & -5 \end{pmatrix}
2. (B)\begin{pmatrix} 16 & -5 & 7 \end{pmatrix}
3. (C)\begin{pmatrix} 16 & 0 & 7 \end{pmatrix}
4. (D)\begin{pmatrix} 22 & -35 & -1 \end{pmatrix}