Question: Given the following matrix 1 -1 A = 1 1 1 -2. Answer by true or false and justify (any answer without justification will

Given the following matrix 1 -1 A = 1 1 1 -2.

Given the following matrix 1 -1 A = 1 1 1 -2. Answer by true or false and justify (any answer without justification will not be considered) 1. Null(A) is subspace of R. 2. S=u1 -1,u2 = is a basis of null (A). %3D 3. Rank(A)=3 4. The column space of A is a subspace of Rof dimension 2.

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