Question

If A =$\{p,q,r,s\}$ and $B=\{m,n,p,q,s\}$ ,then verify the association property of union of sets ?

Answer 1

$A=\{p,q,r,s\}$

$B=\{m,q,n,s,t\}$

$C=\{m,n,p,q,s\}$

$A\cup (B\cup C)$:

$(B\cup C)=\{m,n,p,q,t\}$

$A\cup (B\cup C)=\{m,n,p,q,r,s,t\}$

$(A\cup B)\cup C$:

$(A\cup B)=\{m,n,p,q,r,s,t\}$

$(A\cup B)\cup C=\{m,n,p,q,r,s,t\}$