Question:
If A is a 5 x 7 matrix with rank 3, which one of the
Last updated: 7/8/2022
![If A is a 5 x 7 matrix with rank 3, which one of the](https://media.kunduz.com/media/sug-question/raw/84347529-1657287965.2722056.jpeg?h=512)
If A is a 5 x 7 matrix with rank 3, which one of the following statements is true: A) The column space of A has dimension 2. B) The row space of A has dimension 4. C) The null space of A has dimension 4. D) Ax = 0 has only the trivial solution. E) A-¹ can be written as a multiplication of elementary matrices.