Sunday, July 9, 2017

real analysis - For which values of p does the serie sumlimitsin=2nftyfrac1npln(n) converge?

For which values of p does the serie n=21npln(p) converge? I'm trying to use the ratio test but I can't get a simple term in which use limit easily enough.

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analysis - Injection, making bijection

I have injection f:AB and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...