題組內容
3. (10%) Given the following linear system Ax = b:
\[ x_1 + 4x_2 + 3x_3 = 12 \]\[ -x_1 - 2x_2 = -12 \]\[ 2x_1 + 2x_2 + 3x_3 = 8 \]
(a) Compute A-1.
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3. (10%) Given the following linear system Ax = b:
\[ x_1 + 4x_2 + 3x_3 = 12 \]\[ -x_1 - 2x_2 = -12 \]\[ 2x_1 + 2x_2 + 3x_3 = 8 \]
(a) Compute A-1.