- #1

cherry

- 20

- 6

- Homework Statement
- Find the interval of convergence for the given power series.

- Relevant Equations
- N/A

Hi, I'm having difficulty understanding why the interval of convergence is (0, 18].

When I tested x=18, I got the following conclusion using the ratio test.

When I attempt using AST, the function still diverges as the lim (n -> inf) = 2^n / n ≠ 0.

What am I missing?

Thanks!

When I tested x=18, I got the following conclusion using the ratio test.

When I attempt using AST, the function still diverges as the lim (n -> inf) = 2^n / n ≠ 0.

What am I missing?

Thanks!