Find the simplification of the expression represented by the following K-map.

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Understand the Problem

The question is asking for the simplification of a Boolean expression represented by a Karnaugh map (K-map). The K-map is given in the form of a table with values that correspond to different combinations of variables.

Answer

The simplified expression is $$X'Y' + XY'$$.
Answer for screen readers

The simplified expression is:

$$ X'Y' + XY' $$

Steps to Solve

  1. Understand the K-map layout

    The K-map given is organized for three variables (X, Y, Z). The first variable (X) is represented in rows, and the others are on the columns. The K-map has the following values:

    • Row $X' (0)$: Columns $00$ (1), $01$ (1), $11$ (1), $10$ (1)
    • Row $X (1)$: Columns $00$ (1), $01$ (1), $11$ (0), $10$ (0)
  2. Identify the minterms

    The K-map has $1$s in the following positions:

    • $X'Y'Z'$ (cell $00$)
    • $X'Y'Z$ (cell $01$)
    • $X'YZ$ (cell $11$)
    • $X'YZ'$ (cell $10$)
    • $XY'Z'$ (cell $00$)
    • $XY'Z$ (cell $01$)

    This can be translated to minterms:

    • From row $X' (0)$: $X'Y'Z'$, $X'Y'Z$, $X'YZ$, $X'YZ'$
    • From row $X (1)$: $XY'Z'$, $XY'Z$
  3. Group adjacent 1s

    A K-map allows grouping $1$s together:

    • Group the four $1$s from row $X' (0)$:
      • $X'Y'$ (covers $Y'Z'$ and $Y'Z$)
    • Group the two $1$s from row $X (1)$:
      • $XY'$ (covers $Y'Z'$ and $Y'Z$)
  4. Write the simplified expression

    From the groups, we derive the simplified expression:

    • First group: $X'Y'$
    • Second group: $XY'$

    Thus, the overall simplified expression is: $$ X'Y' + XY' $$

The simplified expression is:

$$ X'Y' + XY' $$

More Information

This result indicates that the logical expression is true when either of the conditions (X is false and Y is false) or (X is true and Y is false) are satisfied. This expression can be minimized from the given K-map representation which simplifies Boolean algebra notation and implementation in logic circuits.

Tips

  • Overlooking combinations: Students sometimes miss combining adjacent $1$s properly. Always visualize groupings in pairs, quads, or octets when possible to ensure all $1$s are included.
  • Not simplifying fully: Ensure you combine and factor the expressions correctly to achieve the simplest form.

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