Lista de exercicios 1 2 Sistemas Lineares Gauss PDF

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Lista de exercícios sobre Sistemas Lineares e Gauss...

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R3

Ax = b

A=



3 4 −2 1



1 A= 2 3 

−2 −1 −3



b= 

1 4  2



−2 5 



; 

1 b= 7 ; 5   8 b= 3 ; −6   6  14   b =  16  . 6

 8 4 2 A= 4 3 1  −8 −2 0   1 2 −5 4  2 5 12 7   A=  3 5 17 8  1 1 7 4

Ax = b 

1 A= 2 3 

−2 −1 −3

 1 4  5

 2 b= 8 ; 10   1 b =  −1  ; 2   0 b = 0  . 0 

 1 1 1 A =  −1 −1 −1  2 2 2   1 2 −5 4 A =  2 4 −9 9  1 2 −5 4

Ax =



Ax =



u 6= v

0.0001 1 1 1



1 1 0.0001 1



u+v

x1 x2



x1 x2



=



=



1 2



= b;

2 1



= b. 2 × 2 Ax = b Ax = b...