Let T': R³ → R4 be a linear transformation so that T(x) = Ax, where 1 -2 -3 0 1 -1 A = 0 0 1 0 0 0 Which of the following is/are true? A. The kernel of T is a subspace of R4. B. The range of T is the column space of A. C. The null space of A is the empty set because dim(Nul A) = 0. OA and C only

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