Identify the Boolean expression from the given options, which is equivalent to the Logic Circuit Diagram.
Identify the Boolean expression from the given options, which is equivalent to the Logic Circuit Diagram.
Circuit: A and B' (B through a NOT gate) feed an OR gate; the OR output and C' (C through a NOT gate) feed an AND gate; the AND output and D feed a second OR gate, whose output is the circuit output.
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Correct answer: (A) (A + B').C' + D
Explanation
The first OR gate gives A + B', which is ANDed with C' to give (A + B')·C'. This result is ORed with D, so the output is (A + B')·C' + D.