Class 11MathematicsSequences and Seriesnth term of special series, Sum to n terms and Infinite number of terms
MediumThe $n^{th}$ term of the series $\frac{1}{1} + \frac{1 + 2}{2} + \frac{1 + 2 + 3}{3} + \dots$ is:
- A$\frac{n + 1}{2}$
- B$\frac{n - 1}{2}$
- C$\frac{n^2 + 1}{2}$
- D$\frac{n^2 - 1}{2}$
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