If A=[100−1] and B=[0110], find AB and BA. Prove that AB≠BA.

1.	If A=[100−1] and B=[0110], find AB and BA. Prove that AB≠BA.
Answer» If $A = [\begin{matrix} 1 & 0 0 & - 1 \end{matrix}]$ and $B = [\begin{matrix} 0 & 1 1 & 0 \end{matrix}]$ , find $A B$ and $B A .$ Prove that $A B \neq B A$ .

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