Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If 
has its extreme value at 
and 
, then 
is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
We know, any function 
has extreme value at the points where its first derivative is zero.
Given: 
…… ..(i)
Differentiate equation (i) w.r.t. x , we get
Now, 
… .(ii)
… ..(iii)
From equation (ii) and (iii),
and 
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