1
Zadanie 1
Oblicz rząd macierzy A>
a) |
A = |
1 _ 2 |
2 0' -4 3_ |
d, |
A = |
" 2 ■4 |
—3 6 |
1 — 2 |
3~ 1_ | |
"l |
— 2 1 |
" 1 |
1 |
3 |
1 _ | |||||
b) |
A = |
0 |
1 - |
L |
e) |
A = |
—2 |
0 |
— 5 |
3 |
_1 |
—1 0 |
1 |
1 |
—2 |
—4_ | |||||
~3 |
2 -l" |
"l |
—1 |
2 |
0 “ | |||||
c) |
A = |
0 |
0 1 |
f) |
A = |
0 |
1 |
—3 |
1 | |
3 |
2 —2 |
1 |
0 |
—1 |
—1 |
Zadanie 2
i tak,
Oceń, czy następujący układ równań jest układem Cramera i, jeś rozwiąż go metodą wyznaczników.
[—2*1 |
4- x2 |
= 3 | |
15^ |
— 3x2 |
= —8 | |
—3x2 |
= 17 | ||
l-4*i |
+ 5x2 |
= -31 | |
X |
-2x2 |
= 1 | |
2^ |
+ x2 |
-3Xg |
= —8 |
+ 2X3 |
= 3 | ||
+ x2 |
“*s |
= 1 | |
-2>q |
-*2 |
+ 2X3 |
= 0 |
+ x3 |
= 0 | ||
+ x2 |
“*3 |
= 1 | |
3Xj |
-x2 |
+ 2X3 |
=11 |
X, |
-2x2 |
+ *3 |
= 0 |
-3x1 |
+ x2 |
+ X3 |
= 4 |
2x2 |
-3xa |
= 2 | |
r*i |
-x2 |
+ 2x3 |
= —2 |
2*! |
“*2 |
+ 5x3 = |
= 15 |
5Xj |
+ x2 |
~*3 = |
= 4 |
*1 |
“*2 |
H- Xg = |
-2 |
'4*k |
+ x2 |
-3Xg |
= 0 |
< - 2xx |
-x2 |
+ 2X3 | |
+ x2 |
+ *3 |
= 4 | |
3X3 |
-x2 |
+ x3 |
= - |
*1 |
+ x2 |
-2X3 |
= 3 |
-2x2 |
+ x3 | ||
’2*i |
+ x2 |
-*3 = |
0 |
*1 |
-*2 |
+ 5x3 = |
0 |
3Xj |
+ 3Xg — |
0 | |
+ x2 |
+ x3 |
= 0 | |
“2*! |
+ 3x |
2 -4*3 |
= 0 |
*1 |
“*2 |
+ 5x3 |
= 0 |
3Xj |
-2x2 |
+ *3 |
= 0 |
*1 |
+ 5x2 |
-4*3 |
= 0 |
.4*1 |
+ 3x2 |
-2*3 |
= 0 |
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