engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Mathematics Determinants Minors and Cofactors
Find the minor and cofactor, respectively, for element 2 in the matrix ∆ = \(\left( {\begin{array}{*{20}{c}} 6&5\\ 2&4 \end{array}} \right) \)
1
M21 = -5, A21 = 5
2
M21 = 5, A21 = -5
3
M21 = -5, A21 = -5
4
M21 = 5, A21 = 5