Use the Given Row Transformation to Change the Matrix as Indicated

question 326

Multiple Choice

Use the given row transformation to change the matrix as indicated.
- $\left[ \begin{array} { r r r } 3 & 5 & 12 \\ 2 & 1 & 2 \\ 4 & - 1 & 4 \end{array} \right] ; - 2$ times row 2 added to row 3

• A)
• \(\left[ \begin{array} { r r r } 3 & 5 & 12 \\ 2 & 1 & 2 \\ 8 & 1 & 8 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { r r r } 3 & 5 & 12 \\ 2 & 1 & 2 \\ 0 & - 2 & 2 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r r r } 3 & 5 & 12 \\ 2 & 1 & 2 \\ 0 & - 3 & 0 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { r r r } - 1 & 3 & 8 \\ 2 & 1 & 2 \\ 4 & - 1 & 4 \end{array} \right]\)

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