½-⅓+¼-⅕+... ধারাটির সাধারন পদ(nϵN, n>1)

A (-1)n/(n+1)

B (-1)n-1/(n+1)

C (-1)n+1/(n+1)

D (-1)-n-1/(n+1)

Solution

Correct Answer: Option C

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