Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The number of values of 
for
Which 
is a tautology, is
Text Solution
Verified by ExpertsThe correct answer is:
B
We know, 
is equivalent to 
( 
For this to be tautology, 
must be always true which follows for
or 
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems