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3. find all the values of x such that the given...

# Question: find all the values of x such that the given...

###### Question details

Find all the values of x such that the given series would converge.

Sum from n=1 to inf: (x^n)/x!

When I work this out i get IxI*I(x)/(x+1)I... If this is correct, where do I go from here?