1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Is this correct anyone?

  1. Oct 28, 2005 #1
    Can anyone just check if I got it right please?
    And if so could you just explain the theorems that come with each line? Many many thanks in advance

    (A-B) n (B-A) = (AuB’) n (BuA’)
    = (Au(BuA’)) u(B’n (BuA’))
    = ((AnB) u (AnA’)) u ((B’nB) u (B’nA’))
    = (AnB) u Ø u Ø u (B’nA’)
    = (AnB) u (B’nA’)
    = (AnB) u (BuA)’
    = (AnB) - (BuA)
    = (AnB) - (AuB)
  2. jcsd
  3. Oct 28, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    If A = {1,2,3,4} and B = {3,4,5,6}, what is A-B? What is B-A? What is their intersection?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Is this correct anyone?
  1. Is it correct or not (Replies: 4)

  2. Is this graph correct? (Replies: 12)

  3. Which is Correct? (Replies: 5)