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Please show step by stepassignment 2b (2).jpg

assignment 2b (2).jpg

(Section 2.3)
20 points
3. a. Solve the system by inverting the coefficient matrix and using
Theorem 1.6.2 of the textbook.
-x - 2y - 3z = 0
w+ x+ 4y+42=7
w + 3x + 7y+9z =4
-w - 2x - 4y - 6z = 6
b. Determine conditions on the bj's, if any, in order to guarantee that the
linear system is consistent.
X1 - 212 - 3 = b1
-4x1 + 5x2+ 2x3 = 62
-4x1 + 712+ 413 =63

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