- #1

- 467

- 0

## Homework Statement

Determine whether the series converges or diverges.

[tex] \sum \frac{lnk}{k^3} [/tex]

## Homework Equations

## The Attempt at a Solution

Since lnk always less than 0, so [tex] \frac{lnk}{k^3} \leq \frac{1}{k^3}[/tex] and [tex]\frac{1}{k^3} [/tex]diverges so[tex] \frac{lnk}{k^3}[/tex] diverges.