Math Problem Statement

Simplify and draw the resulting logic diagram depicted by the following truth table.

Solution

The provided truth table consists of three variables AA, BB, and CC, and the output XX. Let's analyze the table step by step to obtain the Boolean expression and simplify it:

Truth Table:

ABCX
0000
0011
0100
0111
1001
1010
1101
1111

Steps to solve:

  1. Write the minterms: The minterms are the rows where the output X=1X = 1: (ABC)+(ABC)+(ABC)+(ABC)+(ABC)(A'B'C) + (A'BC) + (AB'C') + (ABC') + (ABC) Here, the apostrophe (') represents the negation of a variable.

  2. Simplify the Boolean Expression: Let's group and simplify these minterms:

    • (ABC)+(ABC)(A'B'C) + (A'BC) can be simplified to ACA'C.
    • (ABC)+(ABC)(AB'C') + (ABC') can be simplified to ACAC'.
    • The term ABCABC remains unchanged.

    So, the simplified Boolean expression is: AC+AC+ABCA'C + AC' + ABC

  3. Further Simplification: This expression cannot be simplified further without losing any essential terms.

Logic Diagram:

  • The first term ACA'C can be represented as a NOT gate for AA, ANDed with CC.
  • The second term ACAC' is AA ANDed with CC' (NOT gate for CC).
  • The third term ABCABC is a simple AND gate for AA, BB, and CC.

Finally, these terms are ORed together to produce the output XX.

Would you like me to draw the logic diagram for this? Also, do you have any specific questions about this Boolean simplification process?

Here are 5 related questions for further exploration:

  1. How can Karnaugh maps be used to simplify Boolean expressions?
  2. What are the advantages of simplifying logic circuits in Boolean algebra?
  3. How do AND, OR, and NOT gates interact in a real circuit?
  4. Can we use De Morgan’s laws to simplify any of the terms further?
  5. How would the truth table change if we introduced an additional variable?

Tip: Always look for common terms in Boolean expressions to group and simplify them more easily using laws like distribution and combination.

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Math Problem Analysis

Mathematical Concepts

Boolean Algebra
Logic Gates
Truth Tables

Formulas

Minterms: (A'B'C) + (A'BC) + (AB'C') + (ABC') + (ABC)
Simplified: A'C + AC' + ABC

Theorems

Boolean Simplification

Suitable Grade Level

Grades 10-12