208 Questions for the topic 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

08/08/19

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

06/07/19

04/26/19

01/24/19

#### find n-combinations of the multi set

Given a multi set S = {n*a, n*b, 1, 2, 3, ... , n+1} with a size of 3n+1. Find the number of n-combinations of the set S.I assume that we are choosing n-combinations from 1,2,3 .... n+1, then we... more

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

10/26/18

10/22/18

#### Proper and improper subsets

Phi is a proper or improper subset

09/28/18

#### How to Make a Venn Diagram for the Following Set Notations?

(a) Complete the Venn Diagram to show the sets A, B, and C :   1. C ⊂ A 2. B ∩ C = ∅ 3. n( A ∩ B ) = 3 4. n( B ∪ C ) = 19 5. n(B) = 15 6. n( A ∪  B ) = 23   (b) Hence, state n( A ∩ B' ∩ C'... more

09/12/18

#### Why is this an empty set???

x ∈ R2 : x= t [1, 1] for all t ∈ R . To me this reads like: x is a vector in R2 such that x= t[1,1] for all t in R. So no matter the t I choose (say 1) the resultant vector ( in this case [1,1]) is... more

09/03/18

#### give the following sets, find the set A' n (B U C')

U={1,2,3,...,8} A={1,2,3,4} B={1,2,3} C={1,2,4,6,7}

09/02/18

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

What are two different kinds of 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

07/16/18

#### A and B are disjoint sets and n(A)=6, number of elements in the union of the power sets of A and B is 71 find n(a union b)

N(a) represents the no. Of elements in set a

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

07/05/18

#### Question from chapter sets please answer it

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

06/28/18

Define set

06/25/18

#### Write Y in roster form if

Y = {x:x is a positive factor of the number 2ª ¯¹ (2ª-1),where 2ª-1 is a prime number}.  "Y is equal to the set of all  x such that x is a positive factor of the number 2 raise to the power (a-1)... more

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.

06/25/18

#### Prove the following identity for two sets A and B with a Venn-Euler diagram:

(A∪B)=n(A)+n(B)-n(A∩B)

06/22/18

#### a subset of A is proper, or strict, if it is differs from A, which of the following hold a non-empty set A

a subset of A is proper, or strict, if it is differs from Awhich of the following hold a non-empty set Aa) {subsets of A} < {proper subsets of A}b) {subsets of A} <= {proper subsets of A}c)... more

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?

06/15/18

#### In senior highschool, 35% of the students are girls. If there are 300 fewer girls than boys, find the total number of students in the school.

this is a problem solving of a set.

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

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