Let two 3 × 3 Matrix be X and Y
\(X = \left[ {\begin{array}{*{20}{c}} {-27}&{-21}&{ 24}\\ {31}&{51}&{-39}\\ {12}&{15}&{17} \end{array}} \right]\;and\;Y = \;\left[ {\begin{array}{*{20}{c}} {-20}&{-9}&{ 10}\\ {19}&{47}&{-15}\\ {15}&{10}&{11} \end{array}} \right]\)
What is the rank of X - Y?
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