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ethompsonn 2 years ago If A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}, then which of the following statements is false? ØCA BCB <--- i think its this BCA

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1. ethompsonn

there is an _ under the C mark, in the second answer BTW!

2. hba

Its a compliment ?

3. ethompsonn

??

4. hba

Not sure what you are asking here :(

5. ethompsonn

nvm how about this one Use the listing method to represent the following set. {x | x I, x ≥ 3} {..., 0, 1, 2, 3} {3, 4, 5, 6, ...} {4, 5, 6, 7, ...}

6. hba

x is greater than or equal to 3. Now you tell me ? @ethompsonn

7. ethompsonn

idk

8. hba

remember the set should contain elements which are equal or greater than 3 ?

9. hba

@ethompsonn

10. ethompsonn

derrr...umm..err

11. Aditi_Singh

Some authors use "⊂" for subset .. and "⊆" for "proper subset" .. and some take the other way round. Which way have you learnt it @ethompsonn ?

12. ethompsonn

so the first one

13. ethompsonn

the way u mentioned C for subset

14. ethompsonn

and the other one

15. Aditi_Singh

Okay!

16. Aditi_Singh

Here are some important properties fo sets : • Null set is a subset of every set. • Every set is a subset of itself. Thus, this makes the first and the second option correct. And, you're left with just the 3rd option. So, That's the false statement.

17. ethompsonn

oooh, i get it

18. Aditi_Singh

:)

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