4. Perform the set operation

If \(U\) \(=\) \(\{a\), \(f\), \(h\), \(j\), \(m\), \(r\), \(s\}\), \(A\) \(=\) \(\{a\), \(h\), \(s\}\) and \(B\) \(=\) \(\{f\), \(h\), \(j\}\) then find the following:

 

(i) \(A\) \(\cup\) \(B\) \(=\)

 

(ii) \((A\) \(\cup\) \(B)^{\prime}\) \(=\)