C-07-Q032: For the series $1 - 1 + 1 - 1 + \ldots$, the second partial sum $S_2$ …

C-07-Q032: For the series $1 - 1 + 1 - 1 + \ldots$, the second partial sum $S_2$ … | প্রশ্ন করি

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For the series 1−1+1−1+…1 - 1 + 1 - 1 + \ldots1−1+1−1+…, the second partial sum S2S_2S2​ is —