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If A={1,2,3,4,5} and\ B={1,3,9, 12} then...

If `A={1,2,3,4,5} and\ B={1,3,9, 12}` then `AnnB={1,3}dot`

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We have given `A={1,2,3,4,5}, `and `B={1,3,9,12}`
Then the intersection of two given sets A and B is the largest set that contains all the elements that are common to both the sets A and B.
`\Rightarrow` `AnnB={1,2,3,4,5}nn{1,3,9,12}`
Hence we have `AnnB={1,3}.`
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