Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.4: Subtracting Real Numbers
Problem 8MRE
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Question
use elementary row operations to reduce the given matrix to (a) row echelon form and (b) reduced row echelon form.
Expert Solution
Step 1
Given,
The matrix is
Step 2
a)
The row-echelon form is where the leading (first non-zero) entry of each row has only zeroes below it. These leading entries are called pivots.
Thus the row echelon form is,
.
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