Answer
$\left[\begin{array}{ccc}\sqrt{2} / 2 & -\sqrt{2} / 2 & \sqrt{2} \\ \sqrt{2} / 2 & \sqrt{2} / 2 & 2 \sqrt{2} \\ 0 & 0 & 1\end{array}\right]$
Work Step by Step
$\left[\begin{array}{ccc}\sqrt{2} / 2 & -\sqrt{2} / 2 & 0 \\ \sqrt{2} / 2 & \sqrt{2} / 2 & 0 \\ 0 & 0 & 1\end{array}\right]\left[\begin{array}{ccc}1 & 0 & 3 \\ 0 & 1 & 1 \\ 0 & 0 & 1\end{array}\right]=\left[\begin{array}{ccc}\sqrt{2} / 2 & -\sqrt{2} / 2 & \sqrt{2} \\ \sqrt{2} / 2 & \sqrt{2} / 2 & 2 \sqrt{2} \\ 0 & 0 & 1\end{array}\right]$
