March 17th, 2011, 12:23 PM  #1 
Joined: Mar 2011 Posts: 3 Thanks: 0  Discrete Math Simplifying
I am in desperate need of help simplifying these. I have been working on these two questions for 3 days now. (B – A) U ( B ? A) _____ (A  B) U A 
March 17th, 2011, 12:48 PM  #2 
Global Moderator Joined: May 2007 Posts: 4,346 Thanks: 194  Re: Discrete Math Simplifying
First problem: B BA is all of B outside of A, while A?B is all of B inside A, so the union is B. Second problem all space: AB ? A, Therefore complement reverses the inequality. So the union contains A and its complement  all space. 
March 17th, 2011, 12:55 PM  #3 
Joined: Mar 2011 Posts: 3 Thanks: 0  Re: Discrete Math Simplifying
First off, thank you so much for replying Mathman. However, I am still confused Is it like distributing? I have been looking at my student manual and can only understand when I am given steps. But the questions I am having problems with does not have any sample steps. All of the ones in my student manual are all about U and not  Can you break it down to me barney style? I hope I pass this course. This is my first week in the class. 
March 17th, 2011, 12:59 PM  #4  
Joined: Mar 2011 Posts: 3 Thanks: 0  Re: Discrete Math Simplifying Quote:
 
March 18th, 2011, 03:08 PM  #5  
Global Moderator Joined: May 2007 Posts: 4,346 Thanks: 194  Re: Discrete Math Simplifying Quote:
 

Tags 
discrete, math, simplifying 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Discrete Math Help?  pjlloyd100  Applied Math  11  April 18th, 2013 11:03 AM 
Please help  Discrete math  OriaG  Applied Math  5  February 11th, 2013 11:27 PM 
discrete math....i need help  amyporter17  Applied Math  1  November 17th, 2010 08:23 AM 
Discrete Math  rainysomber  Applied Math  10  December 3rd, 2009 03:55 AM 
Plz help, no one seem to be able to ! Discrete Math  Arturo  Applied Math  6  April 3rd, 2008 08:06 PM 