UPSKILL MATH PLUS

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Answer variants:
121,119,118,17
119,118
122,121,120,17,18,19
122,121,17,19
120,119,118,18
122,120,18,19
If \(U\) \(=\) 122,121,120,119,118,17,18,19, \(X\) \(=\) 120,119,118,18 and \(Y\) \(=\)121,119,118,17, then prove that \((X \cap Y)^{\prime} = X^{\prime} \cup Y^{\prime}\). 
 
\(X \cap Y\) \(=\)
,  \((X \cap Y)^{\prime}\) \(=\)
 
\(X^{\prime}\) \(=\)
,  \(Y^{\prime}\) \(=\)
 
\(X^{\prime} \cup Y^{\prime}\) \(=\)