Use elementary matrices to write ? in row reduced echelon form. Use the elementary matrices to find the inverse of A=begin{bmatrix}1 & 0&-2 0& 2&10&0&1 end{bmatrix}

ringearV

ringearV

Answered question

2021-02-08

Use elementary matrices to write ? in row reduced echelon form. Use the elementary matrices to find the inverse of
A=[102021001]

Answer & Explanation

krolaniaN

krolaniaN

Skilled2021-02-09Added 86 answers

Step 1
Let A=[102021001]
Row reduced echelon form
R1R1+2R3
[100021001]
R2R2R3
[100020001]
Gauss Jordon elimination :to find the matrix
[A/I]=[102|100021|010001|001]
R2R22[102|1000112|0120001|001]
R1R1+2R3
[100|102010|0120001|001]
R2R2R32
[100|102010|01212001|001]
A1=[10201212001]
Varification AA1=[102021001][10201212001]=[100010001]
Jeffrey Jordon

Jeffrey Jordon

Expert2022-01-29Added 2605 answers

Answer is given below (on video)

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