Question

Matrix A= -2 1 0 2 -3 4 5 -6 7 vector u= 1 2 1...

Matrix A= -2 1 0
2 -3 4
5 -6 7

vector u= 1
2
1
a) Is the vector u in Null(A) Explain in detail why
b) Is the vectro u in Col( A) Explain in detail why

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