Question

# Evaluate the indefinite integral as a power series.\int \frac{\tan^{-1}x}{x}dx. f(x)=C+\sum_{n=0}^\infty$$\dots$$.

Integrals
Evaluate the indefinite integral as a power series.
$$\displaystyle\int{\frac{{{{\tan}^{{-{1}}}{x}}}}{{{x}}}}{\left.{d}{x}\right.}$$
$$\displaystyle{f{{\left({x}\right)}}}={C}+{\sum_{{{n}={0}}}^{\infty}}{\left(\dot{{s}}\right)}$$
What is the radius of convergence R?