Evaluate [tex]\Sigma 2(1/10)^n[/tex] or explain why it diverges. (Infinity is on the top of the sum and n=1 on the bottom, I just didn't know how to put it in latex)(adsbygoogle = window.adsbygoogle || []).push({});

This was a test question that I got wrong. I thought that it was a geometric series with r= 1/10. This would mean that r is less than 1 so the series would converge. Why is the question saying that it will diverge?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Geometric series question

**Physics Forums | Science Articles, Homework Help, Discussion**