# calculus II help?

Determine the radius of convergence and interval of convergence of the series:

∞

Σ (x+3)^n/(2^n √ n)

n=1

### 1 Answer

Relevance

- rotchmLv 71 month ago
Hint: Rewrite the terms as ((x+3)/2)ⁿ * 1/√n. Use the ratio test if need be. What does that tell you? Answer that and if need be we will proceed.

Btw, un-anon yourself if you want us to help you further.

Word of advice: I noticed that you are asking a barrage of similar questions. That is very impolite and does not help you at all. Ask just one, and *learn* from it. If you are still stuck after an hour or so, then ask for extra help.

OK, now that u r un-anon, apply the ratio test. What do you get? Answer that & we will continue.

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