The sum of coefficients of the two middle terms in the expansions of (1 + x) 2n – 1 is…
Mathematics · JEE Advanced · NTA Exams — Binomial Theorem And Its Simple Applications
The sum of coefficients of the two middle terms in the expansions of (1 + x)2n – 1 is equal to :
- (2n – 1)Cn
- (2n – 1)Cn + 1
- 2nCn – 1
- 2nCn
Answer
(D) 2n C n
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