$$ \begin{aligned}\sqrt{3}^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3\end{aligned} $$ | |
① | $$ \sqrt{3}^2 =
\sqrt{3} ^2 =
\lvert 3 \rvert =
3 $$ |