Show that B is the inverse of A

$A=\left[\begin{array}{ccc}2& -17& 11\\ 1& -1& 0\\ 0& 3& 2\end{array}\right],B=\left[\begin{array}{ccc}1& 1& 2\\ 2& 4& -3\\ 3& 6& -5\end{array}\right]$

$A=\left[\begin{array}{ccc}2& -17& 11\\ 1& -1& 0\\ 0& 3& 2\end{array}\right],B=\left[\begin{array}{ccc}1& 1& 2\\ 2& 4& -3\\ 3& 6& -5\end{array}\right]$