Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If the derivative of the function 
is everywhere continuous and differentiable at x = 1 then
Text Solution
Verified by ExpertsThe correct answer is:
A
To find a , b we must have two equations in a , b
Since 
is differentiable, it must be continuous at 
.
at 
for f ( x ) 
Again 
is continuous, it must be continuous at 
.
at 
for 
Putting 
we get 
or 
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