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anonymous

  • one year ago

A={2,4,9,16,25} B={3,6,9} What is AUB?

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  1. anonymous
    • one year ago
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    I believe its "9"

  2. anonymous
    • one year ago
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    @jim_thompson5910

  3. jim_thompson5910
    • one year ago
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    think of a venn diagram

  4. jim_thompson5910
    • one year ago
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    |dw:1443239332906:dw|

  5. jim_thompson5910
    • one year ago
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    9 goes in the very middle because it's in both sets (the only number in both sets) |dw:1443239362871:dw|

  6. anonymous
    • one year ago
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    |dw:1443325544162:dw|

  7. jim_thompson5910
    • one year ago
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    that region in math notation is referred to as \(\LARGE A \cap B\) the upside down U means intersection |dw:1443239421263:dw|

  8. jim_thompson5910
    • one year ago
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    while A U B refers to numbers that are in set A, set B or both |dw:1443239461270:dw|

  9. anonymous
    • one year ago
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    The "U" in my question is not upside down by the way.

  10. jim_thompson5910
    • one year ago
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    U for union

  11. jim_thompson5910
    • one year ago
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    `The "U" in my question is not upside down by the way.` ok so you aren't doing an intersection

  12. anonymous
    • one year ago
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    So {2,3,4,6,9,16,25}?

  13. jim_thompson5910
    • one year ago
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    perfect

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