C-13-Q120: The sum of the first $7$ terms of $2 - 4 + 8 - 16 + \cdots$ is —

C-13-Q120: The sum of the first $7$ terms of $2 - 4 + 8 - 16 + \cdots$ is — | প্রশ্ন করি

- 128

-128

The sum of the first 777 terms of 2−4+8−16+⋯2 - 4 + 8 - 16 + \cdots2−4+8−16+⋯ is —