Question #5900179

# please help on this math problem?

**the function f(x)=5x^2 arctan (x^8) is represented as a power series (SUM from n=0 to infinity)cx^n. what is the degree of the lowest term with a non zero coefficient?
find the radius of convergence R of the series
please help, i have a test coming up in two days?
**

TELL US , if you have any answer

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