Find the simplification of the expression represented by the following K-map.
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
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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)
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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 $X (1)$: $XY'Z'$, $XY'Z$
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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 $Y'Z$)
- Group the four $1$s from row $X' (0)$:
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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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