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Which of the following pairs of sets ar...

Which of the following pairs of sets are disjoint
(i) `{1, 2, 3, 4}`and {x : x is a natural number and `4 lt=xlt= 6`}
(ii) `{a , e , i , o, u }`and `{ c , d , e , f}`
(iii) {x : x is an even integer } and {x : x is an odd integer}

Text Solution

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(i)`A`=`{1, 2, 3, 4}`
`B`={x : x is a natural number and `4 lt=xlt= 6`}=`{4, 5, 6}`
Now, `AnnB`=`{1, 2, 3, 4}` nn `{4, 5 ,6}`=`{4}`
`:.` this pair of sets are not disjoint.
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