- #1
td21
Gold Member
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- 8
Homework Statement
find the basis of the nullspace of this matrix [tex]\begin{pmatrix} 1&1&1&-1 \\ 0&0&1&3 \end{pmatrix}[/tex]
Homework Equations
The Attempt at a Solution
i forget it.
i first substitue 0 and 1 for last row but what about the first row? Substiute 0 and 1 again and this will give 4 basis? but i think there is only 2 basis.