Description
Three questions, two are multiple choice. Which of the following systems is in row-echelon form; Use Gaussian elimination to write the system of equations given below in row-echelon form; When using Gaussian elimination to solve a system of linear equations, explain how you can recognize that the system has no solution. Give an example that illustrates your answer.
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Explanation & Answer
Here is my answer :)
Which of the following systems is in row-echelon form?
A
B
C
D
Use Gaussian elimination to write the system of equations given below
in row-echelon form.
A
B
C
D
(
)
We divide first row by two
(
)
We subtract two times the first row to the second row. Also we subtract 4 times the first row to the
third one.
(
)
Now we divide second row by 8
(
)
We add row three to ten times row 2
(
)
(
)
We multiply row three by -4/29
When...