which of the following matrices are in row=reduced form?
can anyone help me with matrices?
Stacey Warren - Expert brainly.com
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what are your matixes?
and, how does your course define row reduced form?
1line 1: 1,0|-9
line 2: 0,1 | 2
2. line 1: -,1|-9
line 2: 1,0 | 2
3. line 1: 1,0,-9|2
line 2: 0,1,0 | -3
I am pretty sure only the first one is in reduced form.
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there are 2 terms; row reduced; and row reduced echelon
echelon means stairsteps ... its when the bottom left is all zeros
a b c d
0 e f g
0 0 0 h
1 is in row reduced form, but why would you discard the other 2?
2 does not have a leading 1 and a zero after ad the second line should be 0,1
and number three has a -9 in it which should be a 0.
your definition is prolly
has a leading 1 in every row, and that 1 is the only nonzero number in its column
rows 1 and 2 have leading 1s, and they are the only number in their column ... the -9 simply doesnt have a 'row' that it could have a leading 1 to be placed.
does that make any sense?
r1;  0 -9 2
r2; 0  0 -3
r1 has a leading 1, and its the only number in its column
r2 has a leading 1, and its the only number in its column
there are no more rows to compare in order to discount -9, 2, or 3