- #1
Marakh
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Homework Statement
Find Kernel, Image, Rank and Nullity of the matrix
1 −1 1 1
| 1 2 −1 1 |
0 3 -2 0
Homework Equations
The Attempt at a Solution
I have reduced the matrix into rref of
3 0 1 3
0 3-2 0
0 0 0 0
But am struggling to find the column vectors which are the solutions of that, which I believe is the kernel
And then I know that the rank and nullity are the dimensions of the image and kernel respectively