Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The coefficient of x 18 in the expansion of 
is _____________
Text Solution
Verified by ExpertsThe correct answer is:
5005
(5005)
Given,
Binomial expression 
Now general term is given by,
For coefficient of x 18 , equate 60 - 7r = 18
r = 6
Coefficient of ,x 18 = (-1) 6 - 15 C 6 = 5005
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