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15-03-2024
Mathematics

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Perform the indicated elementary row operation. (beginbmatrix -2 & 7 & -4 & 4 10 & -4 & 1 & -20 -1 & 4 & 1 & 8 endbmatrix) Add 5 times Row 1 to Row 2.
a) (beginbmatrix -2 & 7 & -4 & 4 0 & 31 & -19 & -16 -1 & 4 & 1 & 8 endbmatrix)
b) (beginbmatrix -2 & 7 & -4 & 4 0 & 1 & -2 & -4 -1 & 4 & 1 & 8 endbmatrix)
c) (beginbmatrix -2 & 7 & -4 & 4 0 & 26 & -16 & -16 -1 & 4 & 1 & 8 endbmatrix)
d) (beginbmatrix -2 & 7 & -4 & 4 0 & 31 & -19 & -16 -2 & 11 & -6 & 0 endbmatrix)

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