If A = \(\left[ {\begin{array}{*{20}{c}} 1&{ - 1}&0\\ 2&3&4\\ 0&1&2 \end{array}} \right]\) and B = \(\left[ {\begin{array}{*{20}{c}} 2&2&{ - 4}\\ { - 4}&2&{ - 4}\\ 2&{ - 1}&5 \end{array}} \right]\), then :
1
A-1 = B
2
A-1 = 6B
3
B-1 = B
4
B-1 = \(\frac{1}{6}\) A