Question: Karnaugh map for BCD invalid code ba/dc 00 01 11 10 00 0 0 0 0 01 0 0 0 0 11 1 1 1

Karnaugh map for BCD invalid code

ba/dc	00	01	11	10
00	0	0	0	0
01	0	0	0	0
11	1	1	1	1
10	0	0	1	1

Find the expression for the invalid BCD codes by reading the SOP (Sum of the Product) from the map. Write the Boolean expression below:

If you have written the expression correctly in step 2. there should be two product terms and you will see that the letter D appears in both terms. By factoring D form each term, you will arrive at another expression for the invalid codes. Write the new expression below:

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