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Q.

If Hn=1+12+13+…+1n then value of 1+32+53+…+2n−1nis

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a

Hn+n

b

2n−Hn

c

n−1+Hn

d

Hn+2n

answer is B.

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Detailed Solution

1+32+53+⋯+2n−1n=(2−1)+2−12+2−13+⋯+2−1n=2n−Hn
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