good krwlz, i think you got the right answer!
Quote:
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Originally Posted by pan6467
We want to solve for X, when AX=B
A
GAUSS-JORDAN
(-1 2|1 0)
(2 -4|0 1)
R2+R1
(1 -2|1 1)
(2 -4|0 1)
-2R1+R2
(1 -2|1 1)
(0 -8|-2 -1)
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it\'s ok to use GJ, but you made a mistake in the last step above:
-2R1+R2 should give you a zero row, therefore suggesting no solution.
-2R1+R2
(1 -2|1 1)
(0 0 |x x)