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Joel_the_boss

  • one year ago

Let set A = {1, 3, 5, 7} and set B = {1, 2, 3, 4, 5, 6, 7, 8}. Which notation shows the relationship between set A and set B?

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  1. Joel_the_boss
    • one year ago
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    A ∪ B A ⊆ B A ∩ B B ⊆ A

  2. Joel_the_boss
    • one year ago
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    Ive never been good at this so if someone can help me i would appreciate it, Thanks. :)

  3. UsukiDoll
    • one year ago
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    I can only do the first and third one.. I"m kind of idiotic for 2 and 4.. maybe I can try (can't guarantee if it's right)

  4. UsukiDoll
    • one year ago
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    so for the first one A ∪ B this is the union of A and B which means all elements are considered. For the third one A ∩ B this is the intersection of A and B which means what does A and B have in common and you list those elements only

  5. Joel_the_boss
    • one year ago
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    Try explaining as best as possible. Im trying to learn this and move on. Thank you :)

  6. hba
    • one year ago
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    A subset of B and B subset of A might only return a true or false

  7. UsukiDoll
    • one year ago
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    A ⊆ B This means A is contained in B...or A is a subset in B I think it's the elements of A is contained in B.

  8. Joel_the_boss
    • one year ago
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    So as you stated, the third one should be correct? Relationship, right?

  9. UsukiDoll
    • one year ago
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    Similarly B ⊆ A means that B is a subset of A.. B is contained in A.. So I'm assuming it's only elements in B that are contained in A.

  10. UsukiDoll
    • one year ago
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    I have no idea how to handle that term... if "relationship" you mean what do they have in common? Or "relationship" can be subset idkz.

  11. hba
    • one year ago
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    U is a OR relation and ∩ is a AND relation

  12. Joel_the_boss
    • one year ago
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    I think it would be the third option, n. @hba what do you think?

  13. Joel_the_boss
    • one year ago
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    thanks for helping @UsukiDoll It's been a while since i got help like that. :)

  14. hba
    • one year ago
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    all of A r in B so A is subset from B ,As B is superset

  15. hba
    • one year ago
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    I guess that would be the answer

  16. Joel_the_boss
    • one year ago
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    Thanks you @hba

  17. Joel_the_boss
    • one year ago
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    When did u hit 99? o.O

  18. hba
    • one year ago
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    Long time ago before i left :p

  19. UsukiDoll
    • one year ago
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    thanks ^^. At least I tried xD. This is set theory but I really hate some of the symbols.

  20. Joel_the_boss
    • one year ago
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    i left in march so XD

  21. Joel_the_boss
    • one year ago
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    well cya later guys

  22. hba
    • one year ago
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    What's your answer?

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