In this lesson, we will learn how to identify the reduced row echelon form of a matrix and use Gauss-Jordan elimination to get it and hence solve a system of linear equations.
Q1:
Describe the row switches which are necessary to put the following matrix into echelon form: ⎡⎢⎢⎣03400022−2004⎤⎥⎥⎦.
Q2:
Give the sum of all the pivot entries in the following matrix: 𝐴=⎡⎢⎢⎢⎢⎣35−100000400−1120⎤⎥⎥⎥⎥⎦.
Q3:
State whether the following matrix is in echelon form: 054024002.
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