Question

Given X + Y = \begin{gathered}\begin{gathered}\left[\begin{array}{ccc}1&2\\1&1\\\end{array}\right]\end{gathered}\end{gathered}[11​21​]​​ and X - Y = \begin{gathered}\begin{gathered}\left[\begin{array}{ccc}3&0\\-1&1\\\end{array}\right]\end{gathered} \ \textless \ br /\ \textgreater \ \end{gathered}[3−1​01​]​ \textless br/ \textgreater ​ . Find X and Y ?​

Answer 1

Answer:

sorry friend I don't know