- #1
Arkuski
- 40
- 0
Prove that the series [itex]\displaystyle\sum_{k=1}^{\infty}\sqrt[k]{k+1}-1[/itex] diverges.
I thought that I could show the [itex]n^{th}[/itex] term was greater than [itex]\frac{1}{n}[/itex] but this is turning out to be more difficult than I imagined. Is there a neat proof that [itex]n^n>(n+1)^{n-1}[/itex]?
I thought that I could show the [itex]n^{th}[/itex] term was greater than [itex]\frac{1}{n}[/itex] but this is turning out to be more difficult than I imagined. Is there a neat proof that [itex]n^n>(n+1)^{n-1}[/itex]?