C-07-Q035: For the series $1 - 1 + 1 - 1 + \ldots$, when $n$ is odd, $S_n$ equals…

C-07-Q035: For the series $1 - 1 + 1 - 1 + \ldots$, when $n$ is odd, $S_n$ equals… | প্রশ্ন করি

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For the series 1−1+1−1+…1 - 1 + 1 - 1 + \ldots1−1+1−1+…, when nnn is odd, SnS_nSn​ equals —