153 Answered Questions for the topic Sets

05/29/21

03/20/21

#### Negation with quantifiers

Q. Write down the negations of the following statements: a. Every news site reported on the Winter Olympics. b. There is some real number which is larger than any integer. c. For all nonzero real... more

11/19/20

#### How many elements are contained in the set (1,5) \ {1}?

How many elements are contained in the set (1,5) \ {1}?
Sets

09/04/20

#### how to find these sets?

U= {a,b,c,d,e,f,g}A= {c,d,e,f}B= {d,e,g}what is:1. A'2. B'3. A∪B'4. B∩C'

05/12/20

#### Logics, Sets, Karnuagh Maps, Boolean Logic Customer Reviews

Let the universal set U be the following set of 16 countries:  U = {Angola, Benin, Chad, Djibouti, Eritrea, Ghana, Kenya, Libya, Mali,           Namibia, Rwanda, Sudan, Tanzania, Uganda,... more
Sets

01/18/20

#### All the sets possible

I can eat at USA, France and Italy i can eat at some all or none what are all the sets
Sets

08/19/19

#### If A intersection B' is null set prove that A is subset of B

About sets identities and proof of sets
Sets Algebra 2

07/14/19

#### How to rewrite, having trouble.

How to rewrite set G using elements G= y|y is an integer and 3≤Y<5
Sets Algebra 1

06/07/19

Sets Algebra 1

12/12/18

#### Algebra and sets math problem

Suppose A = {x |x ≤ −2, x ≥ 3} and B = {x | −1 ≤ x < 5}. Which statement is true? A.-A ∪ B is all real numbers B.-A ∩ B = ∅ C.-A' = {x | −2 ≤ x ≤ 3} D.-B ⊆ {x | x ≤ 5} NEED ANSWER QUICK
Sets

09/02/18

#### What are two different signs for sets ?

What are two different kinds of sets
Sets

08/17/18

#### Sets of whole numbers greater than 8

Indicate the the following set by the listing method.  Whole numbers greater than 8

07/05/18

#### n(A intersection B) =0. I want to ask what the n here means

and if we’re given with a statement of union or intersection with this n then how do we find the conditio? Thank you
Sets

07/05/18

In a group of 34 children each one play cricket or hockey or both of 16 can play criçket and 12 can play cricket only find how many play hockey only
Sets

06/28/18

Define set
Sets Set Theory

06/25/18

#### If A and B are subsets of the universal set U , then show that

A⊂B⇔A∪B=B , without the use of Venn-Euler diagram.
Sets Power Set

06/21/18

#### If n(A)=n, then what is the number of the non empty subsets of A.

What is the number of the non empty subsets of A, If n(A)=n?

06/11/18

#### Sets involving fractions

A number of tourists were interviewed on their choice of means of travel. 2 thirds said that they traveled by road, 13/30 by air and 4/15 by both air and road. How many tourists were... more

06/06/18

#### How do I prove that a set of closed sets is itself closed.

Hi, I have been asked the following but am struggling.   Let {Ωa : a ∈ I} be an arbitrary family of closed sets Ωa ⊆ Rd with an index set I. Prove that   ∩     Ωa a ∈ I   is a closed... more

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