Question

Suppose $U=\{3,4,5,6,7,8,9,10,11,12,13\},A=\{3,4,5,6,9\},B=\{3,7,9,5\}$ and $C=\{6,8,10,12,7\}$. Write down the following sets and draw Venn diagram for each:
$(B^{\prime }{)}^{\prime }$

Answer 1

${\left(B^{\prime }\right)}^{{}^{\prime }}=B$

$\left(B^{\prime }\right)=\{3,7,9,5\}$