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CGP EDU Academic Team
Published on: August 13, 2026
The index ' n ' of the binomial 
if the only 9 th term of the expansion has numerically the greatest coefficient (n ∈ N), is :
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
n = 12
Sol. For T 9 to be the numerically greatest term, r = 
= 
= 8
⇒ 8 < 
< 9 ⇒ 11 < n < 12.5 ⇒ n = 12
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