How to find Rank of matrix (4x4) , with an example ?
Try to make the matrix uper triangular matrix
Then the max rows/columns which contains zero as well as any nonzero no is the rank of matrix
Rank of matrix is order of highest order non zero minors.
Rank of matrix is R (let suppose) if-
1) every minor of order (R+1)is zero
2) there is at least one non zero minor of order R.