Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let the operations *, 
{a, v}. If (p*q) 
(p 
~q) is a tautology, then the ordered pair (*, 
) is :
A
( 
, 
)
, )
B
( 
, 
)
, )
C
( 
, 
)
, )
D
( 
, 
)
, )
Text Solution
Verified by ExpertsThe correct answer is:
B
Well check each option
For A 
= v of 0 = A
(pvq) 
(pv~q)
= pv(q 
~q)
= pv(c) 
p
For B : * = v O = v
(pvq)v(pv~q) 
t using Venn Diagrams
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