The number of terms in the expansion of (x^ 2 +1+ 1 x^ 2 )^ n , n ∈ N is.
Mathematics · JEE Advanced · NTA Exams — Binomial Theorem And Its Simple Applications
The number of terms in the expansion of \(\left(x^{2}+1+\frac{1}{x^{2}}\right)^{n},\) n ∈ N is.
- 2n
- 3n
- 2n + 1
- 3n + 1
Answer
(C) 2n + 1
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