Question
Find the radius of convergence and interval of convergence of the series.$ \sum_{n = 1}^{\infty} \frac {x^n}{n^44^n} $
Step 1
We use the formula for the radius of convergence which is given by the limit as n goes to infinity of the absolute value of the ratio of the nth term to the (n+1)th term. In this case, the nth term is given by $\frac {x^n}{n^44^n}$. Show more…
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