Calcule o determinante \(A_n\) dessa
sequencia:
\[A_1=[1]\]
\[A_2=\left[\begin{array}{cc}
1 & -1 \\
1 & 1 \\
\end{array}\right].\]
\[A_3=\left[\begin{array}{ccc}
1 & -1& 0\\
1 & 1& -1\\
0 & 1 & 1
\end{array}\right].\]
\[A_4=\left[\begin{array}{cccc}
1 & -1& 0 & 0\\
1 & 1& -1 & 0\\
0 & 1 & 1 & -1\\
0 & 0 & 1 & 1\\
\end{array}\right].\]