Question

Why is $\sum\limits_{t = 1}^{\infty} \frac{r\Delta D}{(1 + r)^t} = \Delta D$?

score 112 · Answer 1 · 2026-04-01 19:14:00

112

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Why is $\sum\limits_{t = 1}^{\infty} \frac{r\Delta D}{(1 + r)^t} = \Delta D$?

Published on 01 Apr 2026 - 19:14

score 237 · Answer 2 · 2026-04-06 05:55:46

237

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Recursive Definition Where ∞ is an Element of a Subset of Integers. How can this be true?

Published on 06 Apr 2026 - 5:55

score 198 · Answer 3 · 2017-07-19 02:37:22

198

Views

Lemma used in Proof of L'Hôpital's Rule for Indeterminate Types of $\infty/\infty$

Published on 19 Jul 2017 - 2:37

score 159 · Answer 4 · 2017-07-20 04:46:56

159

Views

Is $|\mathbb{R}^{2}| > |\mathbb{R}|$?

Published on 20 Jul 2017 - 4:46

score 59 · Answer 5 · 2017-07-22 11:37:29

59

Views

On algebraic operations involving $-\infty$ and $+\infty$

Published on 22 Jul 2017 - 11:37

score 154 · Answer 6 · 2017-07-24 00:11:09

154

Views

Definite integral $\int\limits_{-\infty}^{\infty} x (\arctan x)' dx$

Published on 24 Jul 2017 - 0:11

score 98 · Answer 7 · 2026-04-03 13:03:59

98

Views

Explain this to a middle / high school student

Published on 03 Apr 2026 - 13:03

score 85 · Answer 8 · 2017-07-31 16:05:44

85

Views

Understanding the basic idea of Infinity

Published on 31 Jul 2017 - 16:05

score 381 · Answer 9 · 2017-08-02 23:42:22

381

Views

If $\lim_{x\to\infty}\frac{\sin x}{x} = 0$ is zero, why does it not work with L'hospital's way?

Published on 02 Aug 2017 - 23:42

score 736 · Answer 10 · 2017-08-03 12:45:55

736

Views

Is Avogadro's constant closer to infinity than 10?

Published on 03 Aug 2017 - 12:45

score 63 · Answer 11 · 2017-08-05 19:36:58

63

Views

Probability of choosing a certain random number

Published on 05 Aug 2017 - 19:36

score 649 · Answer 12 · 2017-08-08 12:03:36

649

Views

Trying to understand Euclid's prime number proof

Published on 08 Aug 2017 - 12:03

score 53 · Answer 13 · 2026-03-26 22:11:56

53

Views

Are there countably many elements?

Published on 26 Mar 2026 - 22:11

score 11.9k · Answer 14 · 2017-08-08 23:30:13

11.9k

Views

Is infinity 'larger' than 1?

Published on 08 Aug 2017 - 23:30

score 539 · Answer 15 · 2017-08-19 14:50:04

539

Views

Why those who dislike the fact that the reals are uncountable always attack Cantor's diagonal proof?

Published on 19 Aug 2017 - 14:50

List Question

Why is $\sum\limits_{t = 1}^{\infty} \frac{r\Delta D}{(1 + r)^t} = \Delta D$?

Recursive Definition Where ∞ is an Element of a Subset of Integers. How can this be true?

Lemma used in Proof of L'Hôpital's Rule for Indeterminate Types of $\infty/\infty$

Is $|\mathbb{R}^{2}| > |\mathbb{R}|$?

On algebraic operations involving $-\infty$ and $+\infty$

Definite integral $\int\limits_{-\infty}^{\infty} x (\arctan x)' dx$

Explain this to a middle / high school student

Understanding the basic idea of Infinity

If $\lim_{x\to\infty}\frac{\sin x}{x} = 0$ is zero, why does it not work with L'hospital's way?

Is Avogadro's constant closer to infinity than 10?

Probability of choosing a certain random number

Trying to understand Euclid's prime number proof

Are there countably many elements?

Is infinity 'larger' than 1?

Why those who dislike the fact that the reals are uncountable always attack Cantor's diagonal proof?

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