Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If b is very small as compared to the value of a, so that the cube and other higher powers of 
can be neglected in the identity 
,then the value of 
is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
(a − b) −1 + (a − 2b) −1 +…. .+(a − nb) −1
So 
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