1.4.36 Matrix Transformations

Condition: Find the rank of matrix. \ [\ Left (\ Begin {Array} {CCCC} 2 & 0 & -8 & 8 & 1 & 1 & 3 &7 & 4 & 1 & 1 & -1 &11 &11 & 4 & 4 & 4 \\ 1 & 1 & -5 & 6 & 6 & 6 & 6 & 6 & 6 & 6 & 6 & 6 & 6 \ end {Array} \ Right) \]