Boolean Algebra Ideneties for VARIABLES

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Discussion in 'Homework Help' started by antonykmansour, Apr 3, 2016.

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  1. Apr 3, 2016 #1
    antonykmansour

    Thread Starter New Member

    Apr 3, 2016
    1
    0
    Need help doing this for an exam - I keep getting the wrong answer

    ABC+ ABC' + AB'C + A'BC = AB + AC + BC

    Thank you in advanced
     
    #1 Reply
  2. Apr 3, 2016 #2
    MrAl

    AAC Fanatic!

    Jun 17, 2014
    5,034
    1,084
    Hi,

    What did you do so far?
     
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  3. Apr 3, 2016 #3
    Papabravo

    Expert

    Feb 24, 2006
    11,606
    2,425
    Hint: Try adding redundant terms to either side of the identity in such a way that the result is unaffected.
    2nd Hint: Make yourself a truth table to verify that the expression is indeed an identity.
     
    #3 Reply
  4. Apr 3, 2016 #4
    WBahn

    Moderator

    Mar 31, 2012
    22,770
    6,781
    How can we tell you why you keep getting the wrong answer when you don't show us what you did or what answer you got?

    Can you find two terms on the left that reduce to the first term on the right?

    Can you find two terms on the left that reduce to the second term on the right?

    Do you see a pattern developing?
     
    #4 Reply
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