Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If f (x) is a continuous function and 
, then f(1) is equal to
A
1
B
-1
C
D
- 
Text Solution
Verified by ExpertsThe correct answer is:
C
Differentiating using Leibnitz rule, we get,
x 12 f(x 4 )4x 3 – x 6 f(x 2 )2x = 2 
cos 
x
Putting x = 1
4f(1)-2f(1) = 2 
2f(1)=2 
f(1)= 
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