The sum to n terms of the series 1 1.3 + 1 3.5 + 1 5.7 + ..... is

Mathematics · JEE Main · NTA Exams — Progression and Series

1. \(\frac{1}{2 n+1}\)
2. \(\frac{2 n}{2 n+1}\)
3. \(\frac{n}{2 n+1}\)
4. \(\frac{2 n}{n+1}\)

Answer

(C) n 2 n+1

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