- #1

skyturnred

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## Homework Statement

So the dimension is R4. V1=[3 1 1 2], V2=[-2 -1 2 2] and V3=[2 1 2 1]

## Homework Equations

## The Attempt at a Solution

The only way I know of to test for convergence is to make a matrix out of the row vectors of the vectors above (with the row vectors becoming the respective columns of the matrix) and to take the determinant. If det=0 then it is linearly dependent.

The problem here, is that you get the following matrix: [3 -2 2; 1 -1 1; 1 2 2; 2 2 1] which, since it is 4x3, is not possible to find the determinant.

Are there other ways to test for dependence?