- #1
mlk771
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Homework Statement
For which real numbers does the following system have a unique solution?
[tex]14x - 6y + 18z = 2\lambda z[/tex]
[tex] x = \lambda x[/tex]
[tex] 3x - 8y = -\lambda y[/tex]
Homework Equations
The Attempt at a Solution
hi, I rearranged the equations so that becomes:
[tex] x + 0y + 0z = \lambda x[/tex]
[tex] 3x - 8y + 0z = -\lambda y[/tex]
[tex]14x - 6y + 18z = 2\lambda z[/tex]
right?
then I put it in Augmented shape and letting lambda to be 1:
[1 0 0 | 1]
[3 -8 0 |-1]
[14 -6 18 | 2]
After that, I kept trying real numbers from -5 to 5 and everyone of them gave me a unique solution, which is what i want.
In this case are the values should be Real numbers?
But I am still confused about letting lambda = 0, in this case x = y = z = 0;
is this looks a unique solution? if no, then obviously I will have R-{0}
Please help me understand this question.
Thanks