A matrix is represented as A = \(\begin{bmatrix} -4 &1 &-1 \\ -1 &-1 &-1 \\ 7 &-3 &1 \end{bmatrix}\). The rank of the matrix is:

A matrix is represented as A = \(\begin{bmatrix} -4 &1 &-1 \\ -1 &-1 &

1.	A matrix is represented as A = \(\begin{bmatrix} -4 &1 &-1 \\ -1 &-1 &-1 \\ 7 &-3 &1 \end{bmatrix}\). The rank of the matrix is:
A.	2
B.	4
C.	3
D.	1
Answer» B. 4