Convert the Matrix to Row-Echelon Form $\left[ \begin{array} { c c c c } 1 & - 3 & 2 & 3 \\- 2 & 9 & - 6 & - 6 \\- 1 & 6 & - 5 & 0\end{array} \right]$

question 56

Multiple Choice

Convert the matrix to row-echelon form. $\left[ \begin{array} { c c c c } 1 & - 3 & 2 & 3 \\- 2 & 9 & - 6 & - 6 \\- 1 & 6 & - 5 & 0\end{array} \right]$

• A) \(\left[ \begin{array} { l l l l }
• 1 & 1 & 2 & - 2 \\
• 0 & 1 & 0 & - 3 \\
• 0 & 0 & 1 & - 3
• \end{array} \right]\)
• B) \(\left[ \begin{array} { c c c c }
• 1 & - 3 & 2 & 3 \\
• 0 & 1 & 0 & - 2 \\
• 0 & 0 & 1 & - 3
• \end{array} \right]\)
• C) \(\left[ \begin{array} { c c c c }
• 1 & 3 & - 3 & - 2 \\
• 0 & 1 & 0 & - 1 \\
• 0 & 0 & 1 & - 2
• \end{array} \right]\)
• D) \(\left[ \begin{array} { c c c c }
• 1 & 0 & 2 & 0 \\
• 0 & 1 & - 2 & 0 \\
• 0 & 0 & 1 & - 3
• \end{array} \right]\)
• E) \(\left[ \begin{array} { c c c c }
• 1 & 2 & 2 & 1 \\
• 0 & 1 & 0 & 6 \\
• 0 & 0 & 1 & - 3
• \end{array} \right]\)

---

Definitions:

Problem

A matter or situation regarded as unwelcome, harmful, or needing to be dealt with.

Dilemma

A situation in which a difficult choice has to be made between two or more alternatives, especially equally undesirable ones.

Brainstorm

Technique to generate as many ideas as possible for consideration.

Website

A collection of interlinked web pages hosted on the World Wide Web, accessible via the internet by users around the world.