Question

How to find a general sum formula for the series: 5+55+555+5555+.....?

score 53.7k · Answer 1 · 2026-03-14 17:19:04

53.7k

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How to find a general sum formula for the series: 5+55+555+5555+.....?

Published on 14 Mar 2026 - 17:19

score 96 · Answer 2 · 2014-12-03 22:51:14

96

Views

Proof by induction of the formula for $2^0+2^1+2^2+...+2^n$?

Published on 03 Dec 2014 - 22:51

score 1.6k · Answer 3 · 2019-10-07 07:11:53

1.6k

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To prove sum of A.P is greater than G.P

Published on 07 Oct 2019 - 7:11

score 48 · Answer 4 · 2019-10-10 14:41:29

48

Views

Find the sun of ${x\over(x+1)}+{x^2\over(x+1)(x^2+1)}+{x^4\over(x+1)(x^2+1)(x^4+1)}+...$

Published on 10 Oct 2019 - 14:41

score 98 · Answer 5 · 2019-10-12 00:54:12

98

Views

Showing that successive arches of $y=e^{-\alpha x}\sin\beta x$ bound areas in geometric progression with ratio $q=e^{-\alpha\pi/\beta}$

Published on 12 Oct 2019 - 0:54

score 128 · Answer 6 · 2019-10-20 21:49:48

128

Views

Find the sum of the series $\sum_{k=0}^\infty \frac{1}{2^{k+3}}$

Published on 20 Oct 2019 - 21:49

score 32 · Answer 7 · 2019-10-22 09:33:45

32

Views

Arithmetic and geometric progressions based question

Published on 22 Oct 2019 - 9:33

score 82 · Answer 8 · 2019-10-22 19:20:28

82

Views

Show that the series diverges $\sum_{k=2}^\infty \frac{k^{k-2}}{3k}$

Published on 22 Oct 2019 - 19:20

score 22 · Answer 9 · 2019-10-25 19:40:51

22

Views

What is the largest number of members that a geometric progression can have in this problem?

Published on 25 Oct 2019 - 19:40

score 22 · Answer 10 · 2019-11-01 19:36:51

22

Views

Why the geometric series of a random variable that takes all $\mathbb Z$ numbers include $p_{0}$+constant?

Published on 01 Nov 2019 - 19:36

score 16 · Answer 11 · 2026-03-10 20:58:33

16

Views

Calculate the sum of geometric progression.

Published on 10 Mar 2026 - 20:58

score 37 · Answer 12 · 2019-12-10 18:14:38

37

Views

How to calculate the sum of the series?

Published on 10 Dec 2019 - 18:14

score 52 · Answer 13 · 2019-12-19 12:39:24

52

Views

Can't figure out why $\sum_{k=1}^{\infty }\frac{1}{3}\times 2^{| -2k+1 |} = 2/9$

Published on 19 Dec 2019 - 12:39

score 165 · Answer 14 · 2020-01-05 07:18:28

165

Views

Is the series $X=1+\frac{1}{3}+\frac{1}{5}+\frac{1}{7}+..$ divergent or convergent.

Published on 05 Jan 2020 - 7:18

score 172 · Answer 15 · 2020-01-12 08:50:54

172

Views

Why is $\sum_{k=1}^\infty \frac{1}{(b+1)^k}=\frac{1}{b}$?

Published on 12 Jan 2020 - 8:50

List Question

How to find a general sum formula for the series: 5+55+555+5555+.....?

Proof by induction of the formula for $2^0+2^1+2^2+...+2^n$?

To prove sum of A.P is greater than G.P

Find the sun of ${x\over(x+1)}+{x^2\over(x+1)(x^2+1)}+{x^4\over(x+1)(x^2+1)(x^4+1)}+...$

Showing that successive arches of $y=e^{-\alpha x}\sin\beta x$ bound areas in geometric progression with ratio $q=e^{-\alpha\pi/\beta}$

Find the sum of the series $\sum_{k=0}^\infty \frac{1}{2^{k+3}}$

Arithmetic and geometric progressions based question

Show that the series diverges $\sum_{k=2}^\infty \frac{k^{k-2}}{3k}$

What is the largest number of members that a geometric progression can have in this problem?

Why the geometric series of a random variable that takes all $\mathbb Z$ numbers include $p_{0}$+constant?

Calculate the sum of geometric progression.

How to calculate the sum of the series?

Can't figure out why $\sum_{k=1}^{\infty }\frac{1}{3}\times 2^{| -2k+1 |} = 2/9$

Is the series $X=1+\frac{1}{3}+\frac{1}{5}+\frac{1}{7}+..$ divergent or convergent.

Why is $\sum_{k=1}^\infty \frac{1}{(b+1)^k}=\frac{1}{b}$?

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