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The sum to n terms of the series 0.5 + 0.55 + 0.555 + …………………… isA) \(\cfrac{5n}9\) - \(\cfrac{5}{81}\) \((1-\cfrac{1}{10^n})\)B) \(\cfrac{5n}9\) + \(\cfrac{5}{81}\) \((1+\cfrac{1}{10^n})\) C) \(\cfrac{5n}9\) - \(\cfrac{5}{81}\) \((\cfrac{1}{10^n}-1)\) D) \(\cfrac{5n}9\) + \(\cfrac{5}{81}\) \((1-\cfrac{1}{10^n})\) |
Answer» Correct option is A) \(\cfrac{5n}9\) - \(\cfrac{5}{81}\) \((1-\cfrac{1}{10^n})\) |
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