Hi guys and thanks for the help in advance :)
1.(a) Find out when the following system of linear equations has no solution, a unique solution, or infinitely many solutions.
x + -3z = -3
2x + ky - z = -2
x + 2y + kz = 1
{*the sheet gave me instructions to use matlab to reduce it to this form:
[1 , 0 , -3 , -3 ]
[0 , 1 , 5/k , 4/k ]
[0 , 0 , k+3-10/k , 4-8/k ]
what is the answer?*}
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{*The question sheet then tells me to use the >>rref(aug) command which will give me this output:
[1 , 0 , 0 , -3*(k+1)/(k+5) ]
[0 , 1 , 0 , 4/(k+5) ]
[0 , 0 , 1 , 4/(k+5) ] *}
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(b) What do you notice about the difference in the answers?
Try to write down what you think has happened in Mat lab.
2007-05-02
19:23:57
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1 answers
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asked by
Anonymous
in
Mathematics