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You need to design a combinational circuit to find the 9's complement

Question: Design a combinational circuit with four input lines that represent a decimal digit in BCD and four output lines that generate the 9's complement of the input digit.

Provide a fifth output that detects an error in the input BCD number. This output should be equal to logic 1 when the four inputs have one of the unused combinations of the BCD code.

Try to reduce the amount of IC's used.

I cannot seem to get this to work for some reason could somebody provide me the answer of this question?

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M91237557

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