Thread: Gauss scheme (need to find the mistake)

1. Gauss scheme (need to find the mistake)

Please, help me find the mistake in the scam answer on forums (they have indicated it in the Gauss scheme):
Multiplying both sides of the last equality by x1, x2, ..., xn. Where (x1, x2, ..., xn) is a solution of the given system, and we will get it together.
Y1 (a11x1 + a12x2 + ... + a1nxn) +
+ y2 (a21x1 + a22x2 + ... + a2nxn) +
.............................. ..
+ yn (an1x1 + an2x2 + ... + annxn) = x1
but the expression in brackets is b1, b2, ..., bn. So
b1y1 + b2y2 + ... + bnyn = x1
the extreme right element of the last equality will be x1. Quite the same, if we took -1 then in the last tape of the second column the extreme element would equal x2 .. The same calculation can be made by taking -1 in any of the first n columns. Consider now a square matrix. Cause I'm not sure if it's a prejudice based result.
Last edited by PrfromTexas; 10-22-2018 at 03:21 AM.  Reply With Quote

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