- #1

crememars

- 15

- 2

Thread moved from the technical math forums to the schoolwork forum

**TL;DR Summary:**we are given a set of coefficient matrices (shown below) and we need to determine whether they are in REF, RREF, or neither.

Hello! I am having a lot of trouble identifying these matrices, and using the criteria checklist is not helping very much. Here is what I am working with:

Matrix A =

0 0 1

0 0 0

0 0 0

*I

*think*this would be RREF. It has a leading 1 with no non-zero entries above or below it. The two zero rows are confusing me a little though.

Matrix B =

0 0

0 0

0 0

*This one has no leading entries at all, so does it automatically classify as neither REF nor RREF?

Matrix C =

0 0 1

*This matrix has only one row. We did not learn much about exceptions in class, but I feel as if matrices consist of at least more than two equations. Therefore, this matrix

*should*be in neither form. If my reasoning is wrong, then I think that this might be RREF, since there is a leading 1 with no non-zero entries below or above it.

I would sincerely appreciate any help with these problems. Thank you!