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## Homework Statement

[tex]\sum[/tex] n^(1/2)*x^n where n=1 and goes to infinity.

Sorry, I'm new at this. I was kind of hoping to get help finding the interval of convergence.

After using the Ratio Test I got for an answer the absolute value of x. I know I have to prove whether or not the endpoints (-1,1) converge or not. Can I just treat it as an alternating series and apply its absolute value and test for divergence?