Find the adjoint of the given matrix.
[1234]
Let [1234] A11=4,A12=−3,A21=−2 and A22=1 adj A=[A11A12A21A22]T=[4−3−21]T=[4−2−31]
What is the adjoint of the matrix ⎡⎢⎣123111234⎤⎥⎦?