If A,B and C are three sets,each having a finite number of element,find the value of N(AuB)n (AuC) from the following information,N(AuBuC)=100,N(AnBnC)=10,N(AuBuC)=25,N(AnB)=N(BnC)=15,N(A)=N(C)=2(n(B)

  1. 👍 0
  2. 👎 0
  3. 👁 40
  1. well, you know that
    n(AUB) = n(A) + n(B) - n(A∩B)

Respond to this Question

First Name

Your Response

Similar Questions

  1. calculus

    what is the property that distinguishes finite sets from infinite sets (give examples of each to accompany explaination). finite sets are countable. Infinite sets are not. so what would be an example of an infinite set? one that

    asked by Anonymous on March 27, 2007
  2. smallest algebra

    Let F be a family of subsets of a set X such that empty set is the element of F. A subset A of X belongs to F1 if and only if either A is a subset of F or complement of A is the subset of F. A subset B of X belongs to F2 if and

    asked by sxxx123456 on January 15, 2009
  3. math

    If A is a finite set and B is a proper subset of A, prove that |B| < |A|. Hint: B is finite. What is the union of the disjoint sets B and A - B? Note: |A| = size of A

    asked by sara on April 10, 2007
  4. math

    Prove that the union of two finite sets is finite. Hint: A U B = (A - B) U (B - A) U (A ∩ B) where U = union and ∩ = intersection

    asked by sara on April 10, 2007
  5. math

    How can find weak form to d^4u/dx^4+du/dx=f (x) By using finite element

    asked by assma on November 21, 2015
  6. discrete math

    Fill in the blanks: For all sets A and B, if A is in the set of B, then A union B in in the set of B. Proof: Suppose A and B are any sets and A in in the set of B. [we must show that __________] Let x be and element of _______.

    asked by heidi on April 15, 2011
  7. math

    Let U = {xƒ}x is an American}, C = {x/x is a smoker}, D = {xƒ}x has a health problem}, E = {xƒ}x is a male} Describe a person who is an element of each of the following sets. Describe a person who is an element of each of the

    asked by Jamie on April 1, 2010
  8. Math

    Hi! im looking to find relationships between sets of polygonal numbers. I have found a few through the use of finite differences, (a relationship occurs between the formula to determine the polygonal number). I have also found

    asked by Bob on October 14, 2008
  9. math

    7. Classify each of the following as true or false. If false, tell why or give an example showing that it is not true. (a) For all sets A and B, A – B = B – A (b) For all sets A,   A (c) For all sets A, A  A  

    asked by poo on November 30, 2009
  10. Chem

    From the information below, identify element X. a. The wavelength of the radio waves sent by an FM station broadcasting at 97.1 MHz is 30.0 million (3.00 X lo7) times greater than the wavelength corresponding to the energy

    asked by Dianne on March 29, 2007
  11. chemistry

    1.what is meant by atomic number of an element? 2.the mass number of an element is 18,it contains 7 electrons.what is the number of protons and neutrons in it?what is the atomic number of the element? element has an atomic

    asked by pooja on May 4, 2012

More Similar Questions