* Problem #4: Pivot the following matrix, 1-4 12 -4 -20 2 1 -2 -2 2...

Question

Question

* Problem #4: Pivot the following matrix, 1-4 12 -4 -20 2 1 -2 -2 2 1 2 4 Thira about the entry 011: ſi -3 1 5 1 [i -3 1 5 [i

Answer 1

Answer #1

12 -4 12 -4 201 I R + ( + ) R 2 12 2 12 12 4 1-4 To 121 -4 7 -4 2 -20. 42 4 Rz + ĮR 12 I 1 -3 0 7 To 7 15 -12 6. -4 7 -4 7 0

Answer 2

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