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CGP EDU Academic Team
Published on: August 14, 2026
The coefficient of x 9 in the expansion of (1 + x) (1 + x 2 ) (1 + x 3 ) ......(1 + x 100 ) is
Text Solution
Verified by ExpertsThe correct answer is:
8
(8)
9 = (0, 9) (1, 8), (2, 7), (3, 6), (4, 5) # 5 cases
9 = (1,2,6), (1,3,5), (2, 3, 4) # 3 cases
total = 8
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