Question

which of these matrix are in row echeon form or reduced?

Answer 1

AB in echelon and C in reduced...

Answer 2

why isnt D one? can you explain?

Answer 3

coz there is no single row which contain 1st entry zero and 2nd entry non-zero...to compete main diagonal..

Answer 4

im confused whether is aswell, since it has the negative in front?

Answer 5

i ment matrix B

Answer 6

B is in row echelon form but not reduced row echelon form because all the pivots aren't 1. You're right, it's just the negative in front.

Answer 7

so than A,B AND C are all in row echelon form? except c which is also reduced

Answer 8

?

Answer 9

C is not in reduced row echelon form because there is a 7, not a 1.