F00Dislife

13.09.2019 • 

Mathematics

Ax = b: a = (−1 −3 2 1 1 0 −3 −3 2 ) b = ( 2 0 −2 )x = ( x1 x2 x3 ) (a) (2 pts) write down the augmented matrix (a|b). (b) (4 pts) use gauss-jordan elimination to find the reduced row echelon form (rref) of the augmented matrix. (c) (2 pts) what is the rank of a? what is the rank of (a|b) (d) (2 pts) state whether the system is consistent or inconsistent. state how many solutions the system has; if there is/are a solution/s, write it/them down.

Ответ:

giavanleer14

31.08.2021

Mathematics

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(6x+9y=78) - (6x+4y=38) = (5y=40) = y=8

(2x+3(8)=26) = (2x+24=26) = (2x=2) = x=2

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