1.4.18 Matrix Transformations

Condition: for the matrix \ (l = \ left (\ begin {array} {ccc} 2 & 1 & 2 & 2 & 0 & -1 &1 & -1 &1 \ End {Array} \ Right) \) Check: A) is the matrix \ ( \ frac {1} {2} \ left (l-l^{t} \ right) \) oblique; b) Is equality fair \ (l^{2} = 3 \ cdot l \).