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Prove that the sum to n terms of the ser...

Prove that the sum to n terms of the series 11 + 103 + 1005 + …. Is (10/9)`(10^(n)-1)+n^(2)`.

A

`(1)/(9)(10^(n)-1)+n^(2)`

B

`(1)/(9)(10^(n)-1)+2n`

C

`(10)/(9)(10^(n)-1)+n^(2)`

D

`(10)/(9)(10^(n)-1)+2n`

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