The expansion (x + a) n = n C 0 x n + n C 1 x n–1 a 1 + ..... + n C n a n is valid when n…
Mathematics · JEE Main · NTA Exams — Binomial Theorem And Its Simple Applications
The expansion (x + a)n = nC0 xn + nC1 xn–1 a1 + ..... + nCn an is valid when n is
- an integer
- a natural number
- a rational number
- none of these
Answer
(B) a natural number
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