Same chapter3 marksDifficulty: Medium
Distinguish between the canonical SOP and POS forms of a Boolean expression.
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3 marksDifficulty: Medium
Write the dual of the expression X + (Y · Z) and state what the principle of duality says.
Original Khojo Papers practice question — not from a past board paper.
Answer
The dual is X · (Y + Z). The principle of duality states that if a Boolean identity is true, the identity obtained by interchanging + with · and 0 with 1 is also true.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Duality halves the number of laws that have to be proved separately.
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