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Question: solve using the row echelon form...

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Solve using the row echelon form
This is the augmented matrix for the strictly triangular system, w the original system. The solution of the system is easily obtained b PLE 4 Solve the system X1 + X2 + X3+ X4 = 6 2 1 + 4x2 + x3-2x4 =-1 3x1 + x2-2x3 +2x4 = 3 Solution The augmented matrix for this system is 0 1 1 1 0 2 4 1 -2 -1 3 1 -2 23 ince it is not nossible to eliminate any entries by using 0 as a piv
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