4. (20%) What is the radius of convergence of
? What is the domain of f(x) =
? Also show that f(x)≡ ln(1+x) in its domain.
阿摩線上測驗
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阿摩線上測驗
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4. (20%) What is the radius of convergence of? What is the domain of f(x) = ? Also show that f(x)≡ ln(1+x) in its domain.