Question

Find the sum of the given infinite geometric series.

A_1 = 20, r= -.08

Answer 1

do you know the formula for sum of infinite geometric sequence?

Answer 2

I may have it written down but I left my notebook at home so no.

Answer 3

if i told you \[\huge S_\infty = \frac{a_1}{1- r}\]
will that help?

Answer 4

Yes, thank you :)

Answer 5

welcome