Hence, expanding a determinant along any row or column gives same value Remarks
(i)
For easier calculations, we shall expand the determinant along that row or column
which contains maximum number of zeros (ii)
While expanding, instead of multiplying by (–1)i + j, we can multiply by +1 or –1
according as (i + j) is even or odd (iii)
Let A = 2
2
4
0






 and B = 
1
1
2
0





