Solution:
(i) As per the given question,
Consider,
Again consider,
From equation (1) and (2), it is clear that
![\[AB\text{ }\ne \text{ }BA\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-d09c566105b0fcb0522ed329c746eab8_l3.png "Rendered by QuickLaTeX.com")
(ii) As per the given question,
Consider,
Again consider,
From equation (1) and (2) it is clear that,
Show that AB ≠ BA in each of the following cases:
Show that AB ≠ BA in each of the following cases: