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Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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
Transcribed Image Text:Use Gaussian elimination with backward substitution and two-digit rounding arithmetic to solve
the following linear systems. Do not reorder the equations. (The exact solution to each system is
x₁ = -1, x₂ = 1, x3 = 3.)
b.
4x₁ + 2x₂x3 = -5,
x₁ + x₂x3 = −1,
x₁ + 4x₂ + 2x3 = 9.
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