anonymous
  • anonymous
Did I do this correctly? "Create a set of numbers and call the set N. Describe a subset of N and explain why it is a subset of N."
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
N:{1, 2, 3 ,4 ,5 , 6 , 7 ... 20} C:{Numbers divisible by three} ~N{3, 6, 9, 12, 15, 18}
hartnn
  • hartnn
yes, the subset is correct, but why the notation ~N ?
anonymous
  • anonymous
You an use: N' or ~N

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hartnn
  • hartnn
wouldn't N' or N~ be the complement of N ? use another name for subset, say M
anonymous
  • anonymous
I don't understand? "wouldn't N' or N~ be the complement of N ?" Isn't it a complement?
hartnn
  • hartnn
but your question does not ask for complement, it asks for subset and complement and subsets are 2 different things
anonymous
  • anonymous
Can you explain the difference, please?
hartnn
  • hartnn
yes, A = {1,2,3,4,5} let B be the even numbers in A so B= {2,4} here B is a subset of A since all elements of B are in A now complement of B = B' = B~ = {1,3,5} = elements not in B but are in A = odd elements of A got this much ?
hartnn
  • hartnn
so for your example : N:{1, 2, 3 ,4 ,5 , 6 , 7 ... 20} Let C be subset of N defined by C:{Numbers divisible by three} C:{3, 6, 9, 12, 15, 18}
anonymous
  • anonymous
Okay, so ~B means elements in A that are not in B Subset is elements in B that are in A.
hartnn
  • hartnn
so ~B means elements in A that are not in B , correct . subset is a set formed from A(universal set) such that elements of subset are all taken from A only
hartnn
  • hartnn
so in your example, in subset c, you are just taking elements of N which are divisible by 3
anonymous
  • anonymous
Roger that.
hartnn
  • hartnn
ask if any more doubts ?
anonymous
  • anonymous
I'm good. I'll be sure to message you in the future if I have any questions or concerns.
hartnn
  • hartnn
good :) or feel free to tag me in your question
anonymous
  • anonymous
Ok.

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