C-13-Q122: The sum of $(2n + 2)$ terms of $2 - 2 + 2 - 2 + \cdots$ is —

C-13-Q122: The sum of $(2n + 2)$ terms of $2 - 2 + 2 - 2 + \cdots$ is — | প্রশ্ন করি

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The sum of (2n+2)(2n + 2)(2n+2) terms of 2−2+2−2+⋯2 - 2 + 2 - 2 + \cdots2−2+2−2+⋯ is —