Discrete Mathematics $1($MS$4111)$: Tutorial $1$

$5.($From the Repeat Exam $2011/12)$

Let $x$ be a universal set and $A,B,C$ be three subsets of $x.$ Simplify

$\{[(CB{)}^{\text{'}}{C}^{\text{'}}](AC{)}^{\text{'}}{\}}^{\text{'}}\{[(CA)C](AC){\}}^{\text{'}},$

where $D^{\text{'}}$ denotes the complement of the subset $D$ of the universal set $x.$