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anonymous

  • 5 years ago

i dont know much about sets and i am form one student. please help me cos tommorow i have periodic test !

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  1. anonymous
    • 5 years ago
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    help pls

  2. anonymous
    • 5 years ago
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    = +

  3. anonymous
    • 5 years ago
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    what's the question dear?

  4. anonymous
    • 5 years ago
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    whays RATIO

  5. anonymous
    • 5 years ago
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    whays RATIO?

  6. anonymous
    • 5 years ago
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    a set can be defined as a collection of objects, numbers, ideas etc which are defined by a given rule. eg all boys in a given class, or all numbers between 0 and 9 inclusive the last one could be written as A = {0,1,2,3,4,5,6,7,8,9}

  7. anonymous
    • 5 years ago
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    how abou A\B ?

  8. anonymous
    • 5 years ago
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    I still didn't understand what's the question lol. Is it that oyu have problems with sets? or ratios?

  9. anonymous
    • 5 years ago
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    not sure, i just saw that gt ration in the set's chapter

  10. anonymous
    • 5 years ago
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    Can you type the question here? from the book?

  11. anonymous
    • 5 years ago
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    i am blured, ok i will read it again, its 9.30 here gotta sleep before get scolded = =

  12. anonymous
    • 5 years ago
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    lol, type one question from the book ^_^ and I'll try to help out

  13. anonymous
    • 5 years ago
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    A={a,b,c,d,o,f} B={o,t,b,l,m} C={u,b} D={u} Find CU(BnC)

  14. anonymous
    • 5 years ago
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    so confusing this question

  15. anonymous
    • 5 years ago
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    Alright, first step is finding the B Intersection C, do you know what that means? It means that you must find what does set B and set C have in common :)

  16. anonymous
    • 5 years ago
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    yeah, its {b}

  17. anonymous
    • 5 years ago
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    excellent, now second step is to find C U (BnC) we already know that BnC = {b} so now : C U (b) --> union means everything that's found in set C and the set that you have here which is (b) , so what is the answer?

  18. anonymous
    • 5 years ago
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    {b,u}

  19. anonymous
    • 5 years ago
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    Excellent :) see? easy right? ^_^

  20. anonymous
    • 5 years ago
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    so its mean what it gt in C

  21. anonymous
    • 5 years ago
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    union : A U B = everything found in A and B intersection , A n B = common element found in both sets :)

  22. anonymous
    • 5 years ago
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    what do you mean?

  23. anonymous
    • 5 years ago
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    CU(BnC) = C

  24. anonymous
    • 5 years ago
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    exactly :) see, you're smart :P

  25. anonymous
    • 5 years ago
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    you answered your own question, good boy ^_^

  26. anonymous
    • 5 years ago
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    o,0 ok, thanks for the help!

  27. anonymous
    • 5 years ago
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    np :)good luck in your test

  28. anonymous
    • 5 years ago
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    thanks ~

  29. anonymous
    • 5 years ago
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    np ^_^

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