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Digital Arithmetic Operations and Circuits
For a 4-bit parallel adder, if the carry-in is connected to a logical HIGH, the result is:
the same as if the carry-in is tied LOW since the least significant carry-in is ignored.
that carry-out will always be HIGH.
a one will be added to the final result.
the carry-out is ignored.
Correct Answer:
a one will be added to the final result.
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