Same chapter3 marksDifficulty: Medium
Write the dual of the expression X + (Y · Z) and state what the principle of duality says.
Boolean Algebra
3 marksDifficulty: Medium
Distinguish between the canonical SOP and POS forms of a Boolean expression.
Original Khojo Papers practice question — not from a past board paper.
Answer
The canonical sum of products form is a sum of minterms, one for each row of the truth table where the function is 1, each minterm being a product of all the variables in true or complemented form. The canonical product of sums form is a product of maxterms, one for each row where the function is 0, each maxterm being a sum of all the variables.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Either form can be read straight off the truth table.
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