If n is a positive integer greater than 1, then a – n C 1 (a – 1) + n C 2 (a – 2) – ....+…
Mathematics · JEE Advanced · NTA Exams — Binomial Theorem And Its Simple Applications
If n is a positive integer greater than 1, then
a – nC1(a – 1) + nC2(a – 2) – ....+ (–1)n (a – n) is equal to
a – nC1(a – 1) + nC2(a – 2) – ....+ (–1)n (a – n) is equal to
- n
- a
- 0
- none of these
Answer
(C) 0
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