(1 - \(\frac{1}{n}\)) + (1 - \(\frac{2}{n}\)) + (1 - \(\frac{3}{n}\)) + n పదాల వరకు ఫలితం ఏమిటి?

1
\(\frac{1}{2n}\)
2
\(\frac{n - 1}{2}\)
3
\(\frac{1}{n^2}\)
4
\(\frac{1}{2n - 1}\)

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