1.

Find the sum of n terms of 0.8 + 0.88 + 0.888 + …

Answer»

`8/9[1/9{1-(0.1)^N}]`
`8/9[1/10{1-(0.1)^n}]`
`8/9[n-1/9{1-(0.1)^n}]`
NONE of these

Answer :C


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