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For a positive integer n , let a(n) =...

For a positive integer n , let `a(n) = 1+ 1/2 + 1/3 +…+ 1/(2^(n)-1)` : Then

A

Only (iii) and (iv)

B

Only (i) and (iv)

C

Except (i) and (ii)

D

(i) (ii) and (iii) only

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B
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