The addition of two binary variables A and B results into a SUM and a CARRY output. Consider the following expressions for the SUM and CARRY outputs: 1. SUM= A.B+ A’.B’ 2. SUM= A.B’+ A’.B 3. CARRY A. B 4. CARRY = A + B Which of these expressions are correct ?

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The addition of two binary variables A and B results into a SUM and a CARRY output. Consider the following expressions for the SUM and CARRY outputs: 1. SUM= A.B+ A’.B’ 2. SUM= A.B’+ A’.B 3. CARRY A. B 4. CARRY = A + B Which of these expressions are correct ?

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