Calculate $S_{8}$ when $a_{1}=8$ and $r= -\frac{1}{2}$

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Calculate $S_{8}$ when $a_{1}=8$ and $r= -\frac{1}{2}$

E

Editor

Sep 18, 2022

Calculate $S_{8}$ when $a_{1}=8$ and $r= -\frac{1}{2}$

Difficulty: Easy

A:

-\frac{25}{2}

B:

\frac{85}{16}

C:

\frac{55}{8}

D:

-\frac{95}{32}

View Solution Steps

ID: 63273dbaca83163ac3a12d41