C-13-Q122mediumsingle_mcq

The sum of $(2n + 2)$ terms of $2 - 2 + 2 - 2 + \cdots$ is —

a $0$
b $2$
c $-2$
d $4$

ব্যাখ্যা

With an even number of terms $(2n+2)$ , every $+2$ is exactly cancelled by a following $-2$ , so the terms pair off completely. The total therefore reduces to $0$ .

এই অধ্যায়ের আরও প্রশ্ন

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Finite Series — সব প্রশ্ন দেখুন (160টি) →

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

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

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

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

The sum of $(2n + 2)$ terms of $2 - 2 + 2 - 2 + \cdots$ is —

The sum of $(2n + 2)$ terms of $2 - 2 + 2 - 2 + \cdots$ is —