Published by:
CGP EDU Academic Team
Published on: August 11, 2026
If 
is a twice differentiable function such that 
for all x 
R, and 
, then
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Let h(x) = f(x) - x
for some 
by rolle's theorem
as f'(x) > 0 
f’(x) is increasing
f’(1) > f
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