Question

DISPROVING "Every odd positive integer is the sum of a prime number and twice the square of an integer"

score 406 · Answer 1 · 2026-04-02 22:12:29

406

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DISPROVING "Every odd positive integer is the sum of a prime number and twice the square of an integer"

Published on 02 Apr 2026 - 22:12

score 194 · Answer 2 · 2026-03-31 18:26:47

194

Views

Compact ordered topological space

Published on 31 Mar 2026 - 18:26

score 365 · Answer 3 · 2020-03-24 14:22:56

365

Views

Construction of inner product from given $3\times 3$ matrix

Published on 24 Mar 2020 - 14:22

score 807 · Answer 4 · 2020-03-24 14:46:51

807

Views

Proof Verification Convergence of Eigenvalues/Eigenvectors

Published on 24 Mar 2020 - 14:46

score 147 · Answer 5 · 2026-03-26 18:58:26

147

Views

Is Integer Solution of Cubic Negative?

Published on 26 Mar 2026 - 18:58

score 344 · Answer 6 · 2020-03-24 17:39:28

344

Views

How many metrics are defined on a singleton set?

Published on 24 Mar 2020 - 17:39

score 45 · Answer 7 · 2026-04-04 04:20:01

45

Views

Different ways to prove similarity of the given triangles

Published on 04 Apr 2026 - 4:20

score 22 · Answer 8 · 2020-03-24 18:02:11

22

Views

$-\operatorname{sup}(A)$ is it missing something?

Published on 24 Mar 2020 - 18:02

score 2.3k · Answer 9 · 2020-03-24 20:10:00

2.3k

Views

Axler Exercise 1.B.6

Published on 24 Mar 2020 - 20:10

score 582 · Answer 10 · 2020-03-24 21:00:57

582

Views

Showing that a sequence Z is convergent if and only if X & Y are convergent

Published on 24 Mar 2020 - 21:00

score 33 · Answer 11 · 2020-03-24 21:13:54

33

Views

Evaluate $\int e^{9x-2}dx$ using $u$ substitution

Published on 24 Mar 2020 - 21:13

score 42 · Answer 12 · 2020-03-24 21:17:38

42

Views

Evaluate $7\int xe^{6x^2}dx$ using u substitution

Published on 24 Mar 2020 - 21:17

score 169 · Answer 13 · 2026-03-26 04:14:50

169

Views

Fourier transform of the regular tempered distributions induced by $x^\alpha$, $\sin(\langle a, x \rangle_{\mathbb R^n})$, and $\mathbb 1_{[-1,1]}$

Published on 26 Mar 2026 - 4:14

score 40 · Answer 14 · 2026-04-02 22:05:43

40

Views

Doubt regarding a question on continuity.

Published on 02 Apr 2026 - 22:05

score 65 · Answer 15 · 2026-03-26 17:37:36

65

Views

Prove that for every $\varepsilon > 0$ there exists $\delta > 0$ such that if $|x − 3| < \delta$, then $|x^2 − 5x + 6| < \varepsilon$.

Published on 26 Mar 2026 - 17:37

List Question

DISPROVING "Every odd positive integer is the sum of a prime number and twice the square of an integer"

Compact ordered topological space

Construction of inner product from given $3\times 3$ matrix

Proof Verification Convergence of Eigenvalues/Eigenvectors

Is Integer Solution of Cubic Negative?

How many metrics are defined on a singleton set?

Different ways to prove similarity of the given triangles

$-\operatorname{sup}(A)$ is it missing something?

Axler Exercise 1.B.6

Showing that a sequence Z is convergent if and only if X & Y are convergent

Evaluate $\int e^{9x-2}dx$ using $u$ substitution

Evaluate $7\int xe^{6x^2}dx$ using u substitution

Fourier transform of the regular tempered distributions induced by $x^\alpha$, $\sin(\langle a, x \rangle_{\mathbb R^n})$, and $\mathbb 1_{[-1,1]}$

Doubt regarding a question on continuity.

Prove that for every $\varepsilon > 0$ there exists $\delta > 0$ such that if $|x − 3| < \delta$, then $|x^2 − 5x + 6| < \varepsilon$.

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