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If n^(th) term (T(n)) of the sequece is ...

If `n^(th)` term `(T_(n))` of the sequece is given by the relation `T_(n+1)=T_(n)+2^(n),(n epsilonN)` and `T_(1)=3`, then the value of `sum_(r=1)^(oo)1/(T_(r)-1)` equals

A

`1`

B

`2`

C

`3`

D

`4`

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