Question

PLEASE HELP!!! MEDAL WILL BE REWARDED!!! PLEASE HELP!!!!
Write the sum using summation notation, assuming the suggested pattern continues.

3 - 15 + 75 - 375 + ...
Very confused

Answer 1

looks like you are multiplying by \(-3\) each time

Answer 2

So does it converge?

Answer 3

oops i mean \(-5\)

Answer 4

so you could write it as
\[\sum_{k=0}^{\infty}3\times (-5)^k\]

Answer 5

Ohhh okay, I gotcha

Answer 6

oh heck no it doesn't converge! the terms vary wildly