Let \(A = \left[ {\begin{array}{*{20}{c}} 1&0&0\\ 5&2&0\\ { - 1}&6&1 \end{array}} \right]\), then the adjoint of A is
1
\(\left[ {\begin{array}{*{20}{c}} 2&{ - 5}&{32}\\ 0&1&{ - 6}\\ 0&0&2 \end{array}} \right]\)
2
\(\left[ {\begin{array}{*{20}{c}} { - 1}&0&0\\ 0&{ - 2}&0\\ 0&{ - 6}&1 \end{array}} \right]\)
3
\(\left[ {\begin{array}{*{20}{c}} { - 1}&1&0\\ { - 5}&{ - 2}&0\\ 1&{ - 6}&{ - 1} \end{array}} \right]\)
4
None of these