Question

How does this equation work?

score 70 · Answer 1 · 2017-06-23 08:01:30

70

Views

How does this equation work?

Published on 23 Jun 2017 - 8:01

score 94 · Answer 2 · 2017-06-28 10:30:26

94

Views

What rule is used in the factorization $z^5 - 1 = (z - 1)(z^4 + z^3 + z^2 + z + 1)$?

Published on 28 Jun 2017 - 10:30

score 4.4k · Answer 3 · 2017-06-28 17:37:32

4.4k

Views

$1-x+x^2-x^3+..(-1)^nx^n$

Published on 28 Jun 2017 - 17:37

score 37 · Answer 4 · 2017-07-01 07:33:58

37

Views

Can we calculate the mean of a Geometric progression converging to zero?

Published on 01 Jul 2017 - 7:33

score 1.1k · Answer 5 · 2017-07-01 17:39:01

1.1k

Views

If $\sum n, \frac{\sqrt{10}}{3}\sum n^2, \sum n^3$ are in geometric progression, then find the value of n?

Published on 01 Jul 2017 - 17:39

score 118 · Answer 6 · 2017-07-11 12:36:07

118

Views

Prove $\{a_n\}$, where $\sum_{k=0}^{n}\binom n k a_ka_{n-k}=a_n^2$ is a geometric progression

Published on 11 Jul 2017 - 12:36

score 220 · Answer 7 · 2017-07-12 16:01:06

220

Views

Arithmetic and Geometric Series

Published on 12 Jul 2017 - 16:01

score 196 · Answer 8 · 2017-07-13 15:39:44

196

Views

How to find $1 + \frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{6} + \frac{1}{8} + \frac{1}{9} + \frac{1}{12}+\cdots$?

Published on 13 Jul 2017 - 15:39

score 644 · Answer 9 · 2017-07-20 15:46:33

644

Views

Confused with the sequences and series

Published on 20 Jul 2017 - 15:46

score 48 · Answer 10 · 2017-07-22 15:43:20

48

Views

Dilemma in a problem on GP

Published on 22 Jul 2017 - 15:43

score 77 · Answer 11 · 2017-07-27 07:56:34

77

Views

Find the Sum of the Series or a very close upper bound on Sum

Published on 27 Jul 2017 - 7:56

score 640 · Answer 12 · 2017-07-27 14:19:57

640

Views

$a \in (0,1]$ satisfies $a^{2008} -2a +1 = 0$ and we define $S$ as $S=1+a+a^2+a^3........a^{2007}$. The sum of all possible value(s) of $S$ is?

Published on 27 Jul 2017 - 14:19

score 2.1k · Answer 13 · 2017-08-11 05:55:12

2.1k

Views

Range of values of x for the sum to be valid.

Published on 11 Aug 2017 - 5:55

score 181 · Answer 14 · 2026-03-26 06:34:48

181

Views

Find a solution of $a_{n+2} = 5a_{n+1} - 6a_n$ that satisfies the initial conditions $a_0 =3$ and $a_1 =11$

Published on 26 Mar 2026 - 6:34

score 46 · Answer 15 · 2017-08-12 06:43:09

46

Views

How do I get from $\frac{1}{(1+10\%)^1}+\frac{1}{(1+10\%)^2}+...+\frac{1}{(1+10\%)^{5}}$ to $\frac{1-(1+10\%)^{-5}}{10\%}$?

Published on 12 Aug 2017 - 6:43

List Question

How does this equation work?

What rule is used in the factorization $z^5 - 1 = (z - 1)(z^4 + z^3 + z^2 + z + 1)$?

$1-x+x^2-x^3+..(-1)^nx^n$

Can we calculate the mean of a Geometric progression converging to zero?

If $\sum n, \frac{\sqrt{10}}{3}\sum n^2, \sum n^3$ are in geometric progression, then find the value of n?

Prove $\{a_n\}$, where $\sum_{k=0}^{n}\binom n k a_ka_{n-k}=a_n^2$ is a geometric progression

Arithmetic and Geometric Series

How to find $1 + \frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{6} + \frac{1}{8} + \frac{1}{9} + \frac{1}{12}+\cdots$?

Confused with the sequences and series

Dilemma in a problem on GP

Find the Sum of the Series or a very close upper bound on Sum

$a \in (0,1]$ satisfies $a^{2008} -2a +1 = 0$ and we define $S$ as $S=1+a+a^2+a^3........a^{2007}$. The sum of all possible value(s) of $S$ is?

Range of values of x for the sum to be valid.

Find a solution of $a_{n+2} = 5a_{n+1} - 6a_n$ that satisfies the initial conditions $a_0 =3$ and $a_1 =11$

How do I get from $\frac{1}{(1+10\%)^1}+\frac{1}{(1+10\%)^2}+...+\frac{1}{(1+10\%)^{5}}$ to $\frac{1-(1+10\%)^{-5}}{10\%}$?

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