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Draw / implement XOR using 2 level AND-OR logic .

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Whenever a two-level implementation is required to be done and nothing is mentioned about using or not using complement and then assume complement of a variable are also given in advance.

Two-level implementation is basically drawn to show the minterms or maxterms involved in function.

Number of minterms = Number of AND gates needed + 1 OR gate. Number of maxterms = Number of OR gate + 1 AND gate

A Θ B = A'B OR AB'     Two AND gates + 1 OR gate

A Θ B = (A' + B') AND (A + B)  Two OR gates + 1 AND gate
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