(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

For what values of x are the vectors,

[1]

[x]

[2x]

[1]

[-1]

[-2]

[2]

[1]

[x]

linearly dependent?

2. Relevant equations

3. The attempt at a solution

I made a matrix,

[1 ; 1 ; 2 ; 0]

[x ;-1 ; 1 ; 0]

[2x;-2 ; x ; 0]

but I'm having trouble figuring out how to get rid of the x's in the first row, if I get rid of one of the x's then I'm left with nothing to get rid of the other.

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# Homework Help: Vectors and linear dependence

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