AIEEE 2004 Math Solved Paper

Section: Mathematics

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Question : 14 of 68

Marks: +1, -0

The coefficient of xn in expansion of (1+x)(1−x)n is

[AIEEE 2004]

(−1)n−1n
(−1)n(1−n)
(−1)n−1(n−1)2
(n−1)

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