data/json/2025/math_23_calc.txt

23. $\lim_{x \to 0} \frac{3x^2}{\sin^2 x}$ 의 값은? [2점]

\begin{itemize}
    \item[1] 1
    \item[2] 2
    \item[3] 3
    \item[4] 4
    \item[5] 5
\end{itemize}