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How many cells would be required in the Karnaugh map if 4 variables are involved preparing the map for function minimization?

How many cells would be required in the Karnaugh map if 4 variables are involved preparing the map for function minimization? Correct Answer 16

Concept:

The K-map is a graphical method that provides a systematic method for simplifying and manipulating the Boolean expressions or to convert a truth table to its corresponding logic circuit in a simple, orderly process.

In an 'n' variable K map, there are 2n cells

For 4 variables there will be 24 = 16 cells as shown:

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