- #1

- 453

- 8

## Homework Statement

in title

## Homework Equations

## The Attempt at a Solution

so i know that i have to use the ratio test but i just got completely stuck

((2x)

^{n+1}/(n+1)) / ((2x)

^{n}) / n )

((2x)

^{n+1}* n) / ((2x)

^{n}) * ( n+1) )

((2x)

^{n}*(n)) / ((2x)

^{1}) * (n+1) )

now i take the limit at inf? i am stuck here i know i need to find x and do an inequality