((-1)^n(x^n))/(11^n(n^2+5)) i seem to come up with the problem being convergent from -1/11 to 1/11 but it's telling me thats not right. any ideas? thanks , Drew
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Hello, spd579! A simple error . . . somewhere. Ratio Test . . Divide top and bottom by and take the limit. . . Since , we have: .
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