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Question-
Q9. Draw the truth table for a logic function that will subtract three bits to produce a
difference and a borrow.
10. Draw the logic diagram for a circuit that implements the function in question 9.

answer for Q9.

Truth table for Qn 9
_____B D -----B- Borrow D- Difference
0 0 0 | 0 0
0 0 1 | 1 1
0 1 0 | 1 1
0 1 1 | 1 0
1 0 0 | 0 1
1 0 1 | 0 0
1 1 0 | 0 0
1 1 1 | 1 1

Does my truth table correct? and I want to know how to draw Logic diagram for the logi function in qn9.

Thanks in Advance

:)

Edited by acer5542: n/a

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