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The complement of the reduced expression of is:
The complement of the reduced expression of $F(A, B) = \Sigma (0, 1, 2, 3)$ is:
- (a)1
- (b)$A \cdot B$
- (c)0
- (d)$A' + B'$
Answer
Answer
Official answer keyCorrect option: (c)
Answer: (c) 0
For 2 variables A and B there are only 4 possible minterms (0,1,2,3), and $F(A,B)=\Sigma(0,1,2,3)$ includes all of them, so the reduced expression is $F=1$ (always true). The complement of this reduced expression is therefore $1'=0$.
From ISC 2025 Specimen Computer Science Paper 1, question 1(v).