Question: Design 4: Build a subtractor, using your Design 3. To implement 2's complement you need to use NOT gate for switching bits (1 to 0

Design 4: Build a subtractor, using your Design 3". To implement 2's complement you need to use NOT gate for switching bits (1 to 0 and 0 to 1) and High Constant (1) for adding one to the first bit. Do the subtractions below using your subtractor circuit. a) 1001 - 0010 b) 1000 - 0110 c) 0110 - 0101 d) 1001 - 0111
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