Chapter 4.2, Problem 52E

### Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203

Chapter
Section

### Finite Mathematics and Applied Cal...

7th Edition
Stefan Waner + 1 other
ISBN: 9781337274203
Textbook Problem

# Give instructions to check whether or not a matrix is row­reduced.

To determine

The instructions to check whether a matrix is row reduced or not.

Explanation

Consider any row reduced matrix.

The first instruction is to find the leading entry of each row in the matrix and check whether it is 1 and its column is cleared. If the leading entry is not 1 or if the column is not cleared then the matrix is not considered reduced.

Now, we check to see if the leading entry in each row is to the right of the leading entry of the row above.

Finally, we will check that the rows are arranged such that the rows of zeroes are at the bottom.

For example, consider a row reduced matrix:

[100ā17000

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