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Find the values of p for which the series is convergent. Sigma infinite on top and n=1 on bottom. n(1+n^2)^p? What is the cartesian form for sqrt(e ^ipi/3? One number is 2 more than 2 times another. their product is 12. find the numbers? Prove that A is dense in X iff A closure equals X. A subset X.? Express 9 3/8 as improper fraction?