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anonymous

  • 4 years ago

I'm havingtrouble with unions and intersections and complements here is the problem: U={1,2,3,...,10} A={1,2,3,4} B={2,3,4} C={2,5,6,7,8} A' ∩ (B ∪ C')

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  1. Mertsj
    • 4 years ago
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    A' means everything in U that is not in A so A' = {5,6,7,8,9,10} Similarly C' = {1,3,4,9,10} So BUC'={1,2,3,4,9,10} Now the question is "What do A' and B U C' have in common? The answer is {9,10}

  2. anonymous
    • 4 years ago
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    Thank you, the farthest I got was C' = 1,3,4,9,10 now I can try to figure more of these out now that you have helped me, THANK YOU!

  3. Mertsj
    • 4 years ago
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    You're welcome.

  4. anonymous
    • 4 years ago
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    Actually thats not a answer for the choice: It says Find the following set: A' ∩ (B ∪ C') A' ∩ (B ∪ C') = A) {1,5} , B) {6}, C) {1,2,3}, D) { }

  5. Mertsj
    • 4 years ago
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    I'll work through it again and see if I can find an error. The first set is the universal set, right?

  6. anonymous
    • 4 years ago
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    yeah

  7. anonymous
    • 4 years ago
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    http://i40.tinypic.com/1zqslmw.png

  8. Mertsj
    • 4 years ago
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    Well, do you see the problem?

  9. anonymous
    • 4 years ago
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    yeah lmao..they changed the problem on me, sorry ill try to work this one out

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