Ononot — A 4 \times 4 matrix A has rank 3. Which of the following are

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Determinantsmedium

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A $4 \times 4$ matrix $A$ has rank 3. Which of the following are TRUE? (Select all that apply)

(i) $\det(A) = 0$

(ii) $A$ is invertible

(iii) The null space of $A$ is trivial

(iv) The rows of $A$ are linearly dependent