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MCQs: Ch 02 Sets, Functions and Groups

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then - $A\cap B=\phi$ - $A=B$ - $B\subseteq A$ - $A \subseteq B$ - Two sets $A$ and $B$ are equal iff - $A-B \neq \phi$ - $A=B$ - $A \subseteq B$ - $B\subseteq A$ - If every element of a set $A$ is also as element of set $B$, then