How many don't care inputs are there in the BCD adder?
Answer : 312
Answer : 312
Let there be two numbers A and B. If A varies from 0 to 9 and B from 10 to 15 for the carries 0 or 1. Each digit of each carry would have one don't care input condition. Thus from multiplication rule, we get 10 x 6 x 2 = 120 don't cares.Can you justify that assertion?
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