If $U=\{a, b, c, d, e, f, g, h\},$ find the complements of the following sets:
$D=\{f, g, h, a\}$
Which of the following statement is false (where $A$ $\&$ $B$ are two non empty sets)
Fill in the blanks to make each of the following a true statement :
$A \cap A^{\prime}=\ldots$
Let $U=\{1,2,3,4,5,6,7,8,9\}, A=\{1,2,3,4\}, B=\{2,4,6,8\}$ and $C=\{3,4,5,6\} .$ Find
$A^{\prime}$
Let $U=\{1,2,3,4,5,6,7,8,9\}, A=\{1,2,3,4\}, B=\{2,4,6,8\}$ and $C=\{3,4,5,6\} .$ Find
$(A \cup B)^{\prime}$