Sum of Geometric Series Formula
109365
Prove that 1/2 + 1/4 + 1/8 ....... = 1
22657
How to find the sum of the infinite series?
148883
Sum of the series $\frac{1}{2\cdot 4}+\frac{1\cdot3}{2\cdot4\cdot6}+\dots$
34386
Sum of a complex, finite geometric series and its identity
81589
Find the sum of $\sum_{k=0}^{\infty} 1/[(r+2k+2)(s+2k+2)]$
112036
sum of series $\frac{n}{1\cdot 2 \cdot 3}+\frac{n-1}{2\cdot 3\cdot 4}+\frac{n-2}{3\cdot 4 \cdot 5}+\cdots \cdots n$ terms
94060
Sum of square binomial coefficients
73258
Power series summation
145322
Sum of a Hyper-geometric series. (NBHM 2011)
37771
Sum of a power series $n x^n$
63391
How to compute the sum of random variables of geometric distribution
96945
General formula of $\sum_{n\ge1}{\binom{2n}{n}^{-k}}$.
122445
Sum of the series:$\frac{1}{1\cdot 2}+\frac{1\cdot3}{1\cdot2\cdot3\cdot4}+\cdots$
77519
I'm searching for the formula of the series $ \sum_{n=0}^{\infty}a^{n^l} $
58262
Find the sum of the series $1+\frac{1}{3}\cdot\frac{1}{4}+\frac{1}{5}\cdot\frac{1}{4^2}+\frac{1}{7}\cdot\frac{1}{4^3}+\cdots$
39659
Is there a closed formula for this summation?
113633
sum of series using mean value theorem