Recent content by ThatOneGuy45

Homework Statement For this problem I am to find the values of x in which the series converges. I know how to do that part of testing of convergence but constructing the summation part is what I am unsure about. I am given the follwing: 1 + 2x + \frac{3^2x^2}{2!} +\frac{4^3x^3}{3!}+ ...

I am still fairly new with all this analysis stuff. For the interval, what made you choose it? I don't see how it would be in the set entirely. I feel like an idiot in this class.:cry:

In my book, a set of E of R is said to be dense(or dense in R) if every interval (a,b) contains a point of E.

Hi, I am taking an intro. to elementary analysis class and so far our class has gone over sups/infs, the axiom stuff, archimedean property and now we are on dense sets. I've been stuck on this problem for a really long time trying to find clues on how to do it online. It goes as: Are the...