Question

The rank of the $4 \times 6$ matrix $\begin{pmatrix} 1 & 1 & 0 & 0 & 0 & 0 \\\ 1 & 0 & 1 & 0 & 0 & 0 \\\ 0 & 1 & 0 & 1 & 0 & 1 \\\ 0 & 0 & 1 & 0 & 1 & 1 \end{pmatrix}$ with entries in $\mathbb{R}$, is

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (D)

4

Answer 2

The correct option is (D): 4