Consider the matrix A=(102010304)A = \begin{pmatrix} 1 & 0 & 2 \\ 0 & 1 & 0 \\ 3 & 0 & 4 \end{pmatrix}A=103010204. Which method is most efficient to calculate det(A)\det(A)det(A)?
Cofactor expansion along the third row
Cofactor expansion along the second row
Sarrus rule only
Cofactor expansion along the first row