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The sum of first 20 terms of the sequenc...

The sum of first 20 terms of the sequence 0.7 , 0.77 , 0.777,... is

A

`7/9 (99 - 10^-20)`

B

`7/9 (99 + 10^-20)`

C

`7/81 (179 + 10^-20)`

D

`7/81 (179 - 10^-20)`

Text Solution

Verified by Experts

The correct Answer is:
C
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