Find an LU Factorization of the Matrix A $$A = \left[ \begin{array} { r r } 4 & - 1 \\- 24 & 9\end{array} \right]$$

question 82

Multiple Choice

Find an LU factorization of the matrix A.
- $$A = \left[ \begin{array} { r r } 4 & - 1 \\- 24 & 9\end{array} \right]$$

• A) \(A = \left[ \begin{array} { r r } 1 & 0 \\ - 6 & 1 \end{array} \right] \left[ \begin{array} { r r } 4 & - 1 \\ 0 & 3 \end{array} \right]\)
• B) \(A = \left[ \begin{array} { c c } 1 & 0 \\ - 6 & 1 \end{array} \right] \left[ \begin{array} { r r } 4 & 1 \\ 0 & - 3 \end{array} \right]\)
• C) \(\mathrm { A } = \left[ \begin{array} { l l } 1 & 0 \\ 4 & 1 \end{array} \right] \left[ \begin{array} { r r } - 6 & - 1 \\ 0 & 3 \end{array} \right]\)
• D) \(A = \left[ \begin{array} { l l } 1 & 0 \\ 6 & 1 \end{array} \right] \left[ \begin{array} { r r } - 4 & - 1 \\ 0 & - 3 \end{array} \right]\)

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