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QUESTIONS AND ANSWERS PLEASE CLICK

There are ungrouped ones in the answers to the questions I showed in the picture.Bottom one is my solving style but the right answer is upper pic .Shouldn't we group each one in the map? What is this?

canton7
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GAIUS12100
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1 Answers1

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The drawing is a little unclear I think.

If you read the actual answer, you'll notice that there are two options for the final grouping:

A'BD
 or
BCD

BCD is the grouping in red in your answer, while A'BD is the grouping:

A'BD grouping

So there are two options for grouping that lone 1, and the answer considers both of them. It just doesn't draw both of them.

The giveaway is that a single cell needs 4 terms to specify it -- that 1 on its own would be A'BCD. However there aren't any elements with 4 terms in the answer, which means that the answer must have grouped it with another cell.

canton7
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  • I wasn't sure what the correct answer was because I didn't see the grouping process in the Karnaugh map. Thank you for making that clear. – GAIUS12100 Mar 03 '23 at 09:41