행렬 $\begin{pmatrix*}[r] 3 & 0 & 0 & 0 & 0 & 2 \\ 0 & 0 & 0 & 0 & 3 & 2 \\ 0 & 0 & 0 & 4 & 3 & 3 \\ 0 & 0 & 5 & 4 & 4 & 4 \\ 0 & 6 & 5 & 5 & 5 & 5 \\ 1 & 0 & 0 & 0 & 0 & 1 \end{pmatrix*}$ 의 행렬식의 값은?

• ①$-720$
• ②$-360$
• ③$-180$
• ④$180$
• ⑤$360$