Why does what appaears to be a Geomtric Series simplifiy to this?
107976
Find a closed formula for $\sum_{n=1}^\infty nx^{n-1}$
114437
Why is this the basis for the indiscrete topology?
107270
Calculate the following series using telescoping
94902
Simplifying a geometric sum
24508
Series as an integral (sophomore's dream)
131080
Geometric representation of the sum of a Geometric Series
115170
What is the formula for this numerical series?
90325
Why use the derivative and not the symmetric derivative?
72602
Why is important for a manifold to have countable basis?
14031
Why does the series $\sum_{n=1}^\infty\frac1n$ not converge?
102192
Can someone explain geometric multiplicity?
70841
A simple series $\sum_{i=1}^\infty \frac{i}{2^i} = 2$
126040
Geometric explanation of $\sqrt 2 + \sqrt 3 \approx \pi$
42361
Why do we use the Euclidean metric on $\mathbb{R}^2$?
48086
Why is this series of square root of twos equal $\pi$?
93835
Why do those terms vanish if the metric is Hermitian?
82069
How to explain the formula for the sum of a geometric series without calculus?