If A = {positive integers} and B = {…,−4, −3, −2, −1} what is A ∩ B?

Question

anonymous · Answer

empty set

hartnn · Answer

∩ means elements which are "common" to those sets.

hartnn · Answer

which elements are common to A and B ?

inkyvoyd · Answer

∩ is called the intersection. Think of it as the center of a venn diagram.

anonymous · Answer

the options they give me are... { }

 {…, −3, −2, −1, 1, 2, 3, …}

 {1, 2, 3, 4, …}

 {…−3, −2, −1}

inkyvoyd · Answer

Look at what hartnn and I have said. What do you think the answer is?

anonymous · Answer

@aminita  first one is true....since there is nothing common between these two sets you see

anonymous · Answer

yes that is the answer choice i picked but it said it was wrong...

anonymous · Answer

there are no common integers that will fit within bity of these sets that is why i picked it but my teacher marked it wrong :/

inkyvoyd · Answer

take a screenshot of the problem and contact your teacher.

anonymous · Answer

yeah your teacher is just violating the very basic concept of sets

anonymous · Answer

okay thank you all for your help peeps!;)

anonymous · Answer

welcom kid

anonymous · Answer

(y)