Question: Design a combinational circuit that forms the 2-bit binary sum S 1 S 0 of two 2-bit numbers A 1 A 0 and B 1

Design a combinational circuit that forms the 2-bit binary sum S₁S₀ of two 2-bit numbers A₁A₀ and B₁B₀ and has both a carry input C₀ and carry output C₂. Design the entire circuit implementing each of the three outputs with a two-level circuit plus inverters for the input variables. Begin the design with the following equations for each of the two bits of the adder:

S = BC + ABC + BC + ABC + ABC C+1 = AB + AC + BC

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