Question

HELP PLEASE

Answer 1

Determine whether the SERIES is Divergent or Convergent.

10-8+6.4-5.12...

If it is Convergent, find the sum.

Answer 2

@518nad @zepdrix @mathmate

Answer 3

Its all being multiplied by (-4/5)

Answer 4

GOT IT

Answer 5

Is it?
Ok so it's prolly something like this, right?\[\large\rm 10\sum_{n=1}^{\infty}\left(-\frac45\right)^{n-1}\]

Answer 6

Yas. So the sum ends up being 50/9

Answer 7

Geometric? 50/9?
Yay looks correct.