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Find the sum to n terms of the series ...

Find the sum to n terms of the series
`0.4+0.44+0.444+…`to n terms.

Text Solution

Verified by Experts

The correct Answer is:
`S_(n) = 4/9 n - [4/81 (1-1/(10^(n)))]`
(ii) `S_(n) = 10/27 (10^(n)-1) - n/3`
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