$$$\sqrt{3} \left[\begin{array}{cc}\frac{\sqrt{6}}{3} & 0\\0 & \frac{\sqrt{3}}{3}\end{array}\right]$$$
Your Input
Calculate $$$\sqrt{3} \left[\begin{array}{cc}\frac{\sqrt{6}}{3} & 0\\0 & \frac{\sqrt{3}}{3}\end{array}\right]$$$.
Solution
Multiply each entry of the matrix by the scalar:
$$${\color{SaddleBrown}\left(\sqrt{3}\right)}\cdot \left[\begin{array}{cc}\frac{\sqrt{6}}{3} & 0\\0 & \frac{\sqrt{3}}{3}\end{array}\right] = \left[\begin{array}{cc}{\color{SaddleBrown}\left(\sqrt{3}\right)}\cdot \left(\frac{\sqrt{6}}{3}\right) & {\color{SaddleBrown}\left(\sqrt{3}\right)}\cdot \left(0\right)\\{\color{SaddleBrown}\left(\sqrt{3}\right)}\cdot \left(0\right) & {\color{SaddleBrown}\left(\sqrt{3}\right)}\cdot \left(\frac{\sqrt{3}}{3}\right)\end{array}\right] = \left[\begin{array}{cc}\sqrt{2} & 0\\0 & 1\end{array}\right]$$$
Answer
$$$\sqrt{3} \left[\begin{array}{cc}\frac{\sqrt{6}}{3} & 0\\0 & \frac{\sqrt{3}}{3}\end{array}\right] = \left[\begin{array}{cc}\sqrt{2} & 0\\0 & 1\end{array}\right]\approx \left[\begin{array}{cc}1.414213562373095 & 0\\0 & 1\end{array}\right]$$$A