Radius and interval of convergence

[dcrisci]

Homework Statement

infinity
∑ (x^(n+5))/3n! Find the radius of convergence and interval of convergence
n=0

Homework Equations

The Attempt at a Solution

I got 0 for the radius and 0 for the interval of convergence using the ratio test. This is no right. Can someone please help me? Thank you

 

[Ray Vickson]

Homework Statement

infinity
∑ (x^(n+5))/3n! Find the radius of convergence and interval of convergence
n=0

Homework Equations

The Attempt at a Solution

I got 0 for the radius and 0 for the interval of convergence using the ratio test. This is no right. Can someone please help me? Thank you

Show your work.

 

[dcrisci]

Answer

Here it is