$$ \begin{aligned}\sqrt{6}^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6\end{aligned} $$ | |
① | $$ \sqrt{6}^2 =
\sqrt{6} ^2 =
\lvert 6 \rvert =
6 $$ |