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Let U= 1,2,3,4,5,6,7,8,9,10
{12345 n 34567
Thank you

  • algebra -

    which elements are in both sets?


    Don't get sloppy with your notation, or things will get confusing as the problems get more involved. Your second line is just nonsense, but it's easy to figure out what you meant in this case. (I think!)

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