The function
f(x) = 3 x^2 \arctan(x^{7})
is represented as a power series

f(x) = \sum_{n=0}^\infty c_n x^n .

What is the degree of the lowest term with a nonzero coefficient?

Find the radius of convergenceR of the series.

R = .

What is the degree of the lowest term with a nonzero coefficient?

Find the radius of convergence

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