Perform the Indicated Row Operations on the Matrix $$\left[ \begin{array} { r r r } 1 & - 2 & - 3 \\2 & - 3 & - 1 \\1 & - 8 & - 33\end{array} \right]$$

question 21

Multiple Choice

Perform the indicated row operations on the matrix. Show the final result.
$$\left[ \begin{array} { r r r } 1 & - 2 & - 3 \\2 & - 3 & - 1 \\1 & - 8 & - 33\end{array} \right]$$
Add $- 2$ times $R _ { 1 }$ to $R _ { 2 }$ .
Add $- 1$ times $R _ { 1 }$ to $R _ { 3 }$ .

• A)
• \(\left[ \begin{array} { c c c }
• 1 & - 9 & - 36 \\
• 2 & - 3 & - 1 \\
• 1 & - 8 & - 33
• \end{array} \right]\)
• B)
• \(\left[ \begin{array} { c c c }
• 1 & - 2 & - 3 \\
• 0 & 1 & - 4 \\
• 0 & - 10 & - 36
• \end{array} \right]\)
• C)
• \(\left[ \begin{array} { c c c }
• 1 & - 2 & - 3 \\
• 0 & 1 & 5 \\
• 0 & - 6 & - 30
• \end{array} \right]\)
• D)
• \(\left[ \begin{array} { c c c }
• 1 & - 2 & - 3 \\
• - 3 & 4 & - 1 \\
• 0 & 6 & 30
• \end{array} \right]\)
• E)
• \(\left[ \begin{array} { c c c }
• 1 & - 2 & - 3 \\
• 0 & - 1 & 2 \\
• 0 & - 4 & - 29
• \end{array} \right]\)

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