KoreanSAT / data /json /2025 /math_23_geom.txt
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23. 두 벑터 \(\vec{a} = (k, 3)\), \(\vec{b} = (1, 2)\)에 λŒ€ν•˜μ—¬ \(\vec{a} + 3\vec{b} = (6, 9)\)일 λ•Œ, \(k\)의 값은? [2점]
\begin{itemize}
\item[1] \(1\)
\item[2] \(2\)
\item[3] \(3\)
\item[4] \(4\)
\item[5] \(5\)
\end{itemize}