Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Let 
denote the coefficient of 
in the binomial expansion of 
. If 
, then the value of 
equals.
Text Solution
Verified by ExpertsThe correct answer is:
B
Using the identity 
,
we get 
.
Since 
,
we have 
.
For even 
.
Thus 
, and 
.
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