(i) If `A={x:x^(2)-2x+1=0}and B={x:x^(3)-x^(2)-2x=0}`, then find `A cupB and A cap B`
(ii) If `A={1,2,3,4},B={2,4,6,8} and U={1,2,3,....,9}`, then verify that :
`(A cupB)'=A'capB'`
(iii) If `A ={1,2,3},B={2,3,4}and U={1,2,3,4,5}`, then find `A' cap B'`.

Answer

(i) `A cup B = {-1,0,1,2}, A cap B = phi`
(iii) `{5,6}`