Datasets:
23. μ’ν곡κ°μ λ μ \(\mathrm{A}(a, -2, 6) \), \( \mathrm{B}(9, 2, b) \)μ λνμ¬ | |
μ λΆ \( \mathrm{AB} \)μ μ€μ μ μ’νκ° \( (4, 0, 7) \)μΌ λ, \( a + b \)μ κ°μ? [2μ ] | |
\begin{itemize} | |
\item[1] 1 | |
\item[2] 3 | |
\item[3] 5 | |
\item[4] 7 | |
\item[5] 9 | |
\end{itemize} |