Question

Has anyone heard of this maths formula and where can I find the proof to check my proof is correct? $\sum^n_{i = 1}i + \sum^{n-1}_{i=1}i = n^2$

score 3.1k · Answer 1 · 2015-08-05 22:27:32

3.1k

Views

Has anyone heard of this maths formula and where can I find the proof to check my proof is correct? $\sum^n_{i = 1}i + \sum^{n-1}_{i=1}i = n^2$

Published on 05 Aug 2015 - 22:27

score 1.2k · Answer 2 · 2026-03-26 06:22:16

1.2k

Views

What is the relationship between number of perfect squares and number of perfect cubes?

Published on 26 Mar 2026 - 6:22

score 363 · Answer 3 · 2015-08-07 23:53:12

363

Views

Quartic polynomial taking infinitely many square rational values?

Published on 07 Aug 2015 - 23:53

score 71 · Answer 4 · 2015-08-08 18:09:14

71

Views

A basic square numbers equation

Published on 08 Aug 2015 - 18:09

score 41 · Answer 5 · 2015-08-09 12:42:01

41

Views

Simplifying some square numbers expressions

Published on 09 Aug 2015 - 12:42

score 92 · Answer 6 · 2015-08-13 02:24:24

92

Views

Proving that $b^6-2a^3b^3-2b^3+a^6-2a^3+1$ is never a nontrivial integer square?

Published on 13 Aug 2015 - 2:24

score 167 · Answer 7 · 2015-08-16 22:52:14

167

Views

Square root of whole number number of solutions

Published on 16 Aug 2015 - 22:52

score 77 · Answer 8 · 2026-03-29 12:03:59

77

Views

Infinitely many correct solutions to equation?

Published on 29 Mar 2026 - 12:03

score 655 · Answer 9 · 2026-03-27 07:50:56

655

Views

What is this pattern found in the first occurrence of each $k \in \{0,1,2,3,4,5,6,7,8,9\}$ in the values of $f(n)=\sqrt{n}-\lfloor \sqrt{n} \rfloor$?

Published on 27 Mar 2026 - 7:50

score 37 · Answer 10 · 2015-08-18 19:03:44

37

Views

Simple question, what is meant by 'as $x \to \infty$ the number of squares $\leq x$ is $\sqrt{x} + O(1)$?

Published on 18 Aug 2015 - 19:03

score 594 · Answer 11 · 2015-08-19 12:46:32

594

Views

If $2xy$ divides $x^2+y^2-x$, prove that $x$ is a perfect square

Published on 19 Aug 2015 - 12:46

score 160 · Answer 12 · 2026-03-26 19:00:40

160

Views

Elementary proof that $\sum_{k=1}^{\infty}{\frac{1}{m^{k^2}}}$ is irrational (for any integer $m > 1$)

Published on 26 Mar 2026 - 19:00

score 382 · Answer 13 · 2026-03-29 03:21:45

382

Views

Arithmetic progression of squarefree integers?

Published on 29 Mar 2026 - 3:21

score 339 · Answer 14 · 2026-03-28 13:59:07

339

Views

Integer solutions to $x^2 + dy^2 = c$

Published on 28 Mar 2026 - 13:59

score 61 · Answer 15 · 2015-08-24 18:23:42

61

Views

A property regarding complete/perfect squares.

Published on 24 Aug 2015 - 18:23

List Question

Has anyone heard of this maths formula and where can I find the proof to check my proof is correct? $\sum^n_{i = 1}i + \sum^{n-1}_{i=1}i = n^2$

What is the relationship between number of perfect squares and number of perfect cubes?

Quartic polynomial taking infinitely many square rational values?

A basic square numbers equation

Simplifying some square numbers expressions

Proving that $b^6-2a^3b^3-2b^3+a^6-2a^3+1$ is never a nontrivial integer square?

Square root of whole number number of solutions

Infinitely many correct solutions to equation?

What is this pattern found in the first occurrence of each $k \in \{0,1,2,3,4,5,6,7,8,9\}$ in the values of $f(n)=\sqrt{n}-\lfloor \sqrt{n} \rfloor$?

Simple question, what is meant by 'as $x \to \infty$ the number of squares $\leq x$ is $\sqrt{x} + O(1)$?

If $2xy$ divides $x^2+y^2-x$, prove that $x$ is a perfect square

Elementary proof that $\sum_{k=1}^{\infty}{\frac{1}{m^{k^2}}}$ is irrational (for any integer $m > 1$)

Arithmetic progression of squarefree integers?

Integer solutions to $x^2 + dy^2 = c$

A property regarding complete/perfect squares.

Trending Questions

Popular # Hahtags

Popular Questions