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Question

If the Boolean expression (pq)(pq) is equivalent to pq, where ,ϵ{,}, then the order pair (,) is

A
(,)
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B
(,)
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C
(,)
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D
(,)
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Solution

The correct option is A (,)
(pq)(pq)pq (given)
p q p pq pq pq pq (pq)(pq)
TTFTTTFT
TFFFTFFF
FTTFTTTF
FFTFFTFF
from truth table (,)=(,).

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