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Question

If B=A, |P|=|Q|=1, then adj(Q1BP1) is

A
P.Q
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B
Q.adj(A).P
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C
P.adj(A).Q
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D
P.A1.Q
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Solution

The correct option is C P.adj(A).Q
Given, B=A,|P|=|Q|=1
Consider, adj(Q1BP1)
=(adjP1)(adjB)(adjQ1)(adj(ABC)=(adjC)(adjB)(adjA)
=P|P|(adjB)Q|Q|(adjP1=P|P|)
=P(adjA)Q (A=B)

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