answer question 9 please Determine whether the following sequence is absolutely

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answer question 9 please

Determine whether the following sequence is absolutely convergent, conditionally convergent or divergent. (-1)n/ln n Find a power series representation of f(x) = 1/1 + x2 and determine the interval of convergence. Extra Credit For the following questions, determine whether true or false. If true, prove or give a full justification; if false, give an example that shows it is false (e.g. a counterexample). Suppose the series is convergent. Then the series is divergent. For two series If is convergent, then cn(-4)n is convergent.

Explanation / Answer

true

false

false

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