Are the following matrices in Row Reduced Echelon Form If no

Are the following matrices in Row Reduced Echelon Form? If not, put the matrix in RREF.

Solution

a) The matrix is not in Row Reduced Echleon Form

RREF matrix can be calculated by one simple step

b) The matrix is not in Row Reduced Echleon Form

RREF matrix can be calculated by one simple step

c) The third matrix is already in the row reduced echleon form

d) The matrix is not in row-reduced echloen form, the below transformation will convert it in row reduced echleon form

Row Operation 1:

1 1 0 1

add -1 times the 2nd row to the 1st row

1 0 0 1