![(*a*)LinearSolve[{{1, 1}, {1, -1}}, {1, -1}]](../HTMLFiles/ex02_solutions_219.gif){kind=small}
Solution
In[86]:=
Out[86]=
In[87]:=
![(*b*)LinearSolve[{{1, 2, 10}, {10, 2, 10}, {1, 2, 3}}, {10, 1, 0}]](../HTMLFiles/ex02_solutions_221.gif)
Out[87]=
In[88]:=
![(*c*)LinearSolve[{{1, 2, 3}, {0, 1, 2}, {0, 0, 1}}, {1, 1, 1}]](../HTMLFiles/ex02_solutions_223.gif)
Out[88]=
In[89]:=
![(*d*)M = {{1, 1, 1}, {1, 0, -1}, {2, 1, 0}} ; LinearSolve[M, {0, 1, 2}] Det[M]](../HTMLFiles/ex02_solutions_225.gif)
Out[90]=
![LinearSolve[{{1, 1, 1}, {1, 0, -1}, {2, 1, 0}}, {0, 1, 2}]](../HTMLFiles/ex02_solutions_227.gif){kind=small}
Out[91]=
The last set of equations has no solutions because the determinant of the matrix of coefficients is zero.
| Created by Mathematica (April 10, 2007) |  |