Published by:
CGP EDU Academic Team
Published on: August 23, 2026
The sum of all possible values of 
, so that the coefficients of 
and 
in the expansion of 
, are in arithmetic progression is :
Text Solution
Verified by ExpertsThe correct answer is:
D
Coefficient 
,
coeff. of 
Coeff. of 
if 
Now according to question
Now checking for 
are in A.P.
is also the correct choice
Required sum of values of ' n '
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