1.

यदि A={1, 2, 3} तथा B={3, 4, 1} हो तो AuuB होगा

Answer»

`{1, 2, 3, 4, 5}`
`{1, 2, 3}`
`{1, 2, 3, 4}`
`{1, 3}`

ANSWER :C


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