Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Suppose that 
is a quadratic expression positive for all real 
. If 
, then for any real 
(where 
and 
represent 1st and 2nd derivative, respectively)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let 
be a quadratic expression such that
for all 
. Then, 
and 
. Now,
Discriminant of 
is
Therefore, 
for all 
.
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