Question

If S = {positive integers} and subset T = {2, 4, 6, 8 …}, what is T'?

{2, 4, 6, 8 …}

{1, 2, 3, 4, …}

{positive odd integers}

{ }

Answer 1

S = {positive integers}

becomes

S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, ...}

Answer 2

To find T', you start with the set {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, ...} and you erase everything that is in T

Answer 3

So you start with {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, ...} and you erase 2, 4, 6, etc etc

Answer 4

Which will leave you with what?

Answer 5

1,3,5,7,9...... ??????? or what??

Answer 6

good, so you're left with the set of odd positive integers (or whole numbers)

Answer 7

{1, 3, 5, 7, 9, 11, 13, ...} = {set of positive odd integers}

Answer 8

so is it C??

Answer 9

yes

Answer 10

C is a shorter way to say {1, 3, 5, 7, 9, 11, 13, ...}

Answer 11

thank you! :)