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pyroknife
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The problem is attached, I did parts 1-3, but I am having trouble with part 4. This is what i was planning on doing for part 4 (my teacher said this wasn't the correct method):
set T(v)=0
and solve the augmented matrix
1 0 -1 1 0
2 1 -2 4 0
3 1 -1 7 0
rref gives
1 0 0 2 0
0 1 0 2 0
0 0 1 1 0
So N(T)=span{[-2 -2 -1 1]^t}
So shouldn't a basis for N(T) be [-2 -2 -1 1]^t?I don't understand how this is wrong.
set T(v)=0
and solve the augmented matrix
1 0 -1 1 0
2 1 -2 4 0
3 1 -1 7 0
rref gives
1 0 0 2 0
0 1 0 2 0
0 0 1 1 0
So N(T)=span{[-2 -2 -1 1]^t}
So shouldn't a basis for N(T) be [-2 -2 -1 1]^t?I don't understand how this is wrong.
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