The Radius of Convergence of the Power Series $\sum _ { n = 1 } ^ { \infty } x ^ { n } / n !$

question 29

Multiple Choice

The radius of convergence of the power series $\sum _ { n = 1 } ^ { \infty } x ^ { n } / n !$ is

• A) 0
• B) 1
• C) 2
• D) \(\infty\)
• E) none of the above

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