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The series . (2x)/(x + 3) + ((2x)/(x + ...

The series . ` (2x)/(x + 3) + ((2x)/(x + 3))^(2) + ((2x)/(x + 3))^(3) + ...oo`
have a definite sum when

A

` - 1 lt x lt 3 `

B

`0 lt x lt 1 `

C

`x = 0 `

D

`x = - 3 `

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