Solve the system x1 + x2 = -5 x2 + x3 = 2 x3 + x4 = 5 x1 + x4 = -2?
回答 (3)
2014-09-19 4:38 am
x1 + x2 = -5
x2 + x3 = 2
x3 + x4 = 5
x1 + x4 = -2
No solution.
x2 + x3 = 2
x3 + x4 = 5
x1 + x4 = -2
No solution.
2014-09-17 9:02 pm
The determinant of
1 1 0 0
0 1 1 0
0 0 1 1
1 0 0 1
= 0 so there is not a unique solution.
Here's a solution:
-2
-3
5
0
Here's another:
-7
2
0
5
I don't understand the what the additional information is trying to say.
1 1 0 0
0 1 1 0
0 0 1 1
1 0 0 1
= 0 so there is not a unique solution.
Here's a solution:
-2
-3
5
0
Here's another:
-7
2
0
5
I don't understand the what the additional information is trying to say.
2014-09-17 8:23 pm
Solve the system
x1 + x2 = -5
x2 + x3 = 2
x3 + x4 = 5
x1 + x4 = -2
Additional information on the problem:
[x1 x2 x3 x4] = ______________+ s_______________ where s is a free variable.
x1 + x2 = -5
x2 + x3 = 2
x3 + x4 = 5
x1 + x4 = -2
Additional information on the problem:
[x1 x2 x3 x4] = ______________+ s_______________ where s is a free variable.
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