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digital electronics digital arithmetic operations and circuits
1. When performing subtraction by addition in the 2's-complement system:
(A): the minuend and subtrahend are both left in their original form.
(B): the minuend and the subtrahend are both changed to the 2's-complement.
(C): the minuend is changed to 2's-complement and the subtrahend is left in its original form.
(D): the minuend is left in its original form and the subtrahend is changed to its 2's-complement
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