Question

How do I factorize $a^n-b^n$?

score 187 · Answer 1 · 2026-03-25 15:38:18

187

Views

How do I factorize $a^n-b^n$?

Published on 25 Mar 2026 - 15:38

score 50 · Answer 2 · 2018-06-11 14:14:00

50

Views

Find the volume of the solid bounded by $z=x^2 + y^2$, $x+z=0$ - correctness of solution

Published on 11 Jun 2018 - 14:14

score 173 · Answer 3 · 2026-03-24 23:49:54

173

Views

The Redundancy of applying the Gram-Schmidt Procedure on an orthogonal subset of $V$.

Published on 24 Mar 2026 - 23:49

score 120 · Answer 4 · 2018-06-12 00:15:32

120

Views

Existence of a ball whose images under two continuous functions are disjoint.

Published on 12 Jun 2018 - 0:15

score 1.3k · Answer 5 · 2026-03-31 14:17:19

1.3k

Views

Check my proof that the nilradical and the Jacobson radical are equal (A&M 1.6)

Published on 31 Mar 2026 - 14:17

score 320 · Answer 6 · 2026-03-25 12:50:57

320

Views

How many ways are there to choose strings of length $3$ from $S=\{1,2,3,4\}$ for $3$ people if each each digit from $S$ has to appear at least once?

Published on 25 Mar 2026 - 12:50

score 269 · Answer 7 · 2026-03-25 12:50:19

269

Views

In how many ways can string $123456$ be rearranged if at least one character needs to move more than one place from its original position?

Published on 25 Mar 2026 - 12:50

score 331 · Answer 8 · 2026-03-25 08:07:43

331

Views

If $\prod X_{\alpha}$ is locally compact $\Rightarrow$ each...

Published on 25 Mar 2026 - 8:07

score 711 · Answer 9 · 2026-03-29 17:59:39

711

Views

How many permutations of $0123456789$ are possible if $0123$, $2345$, $4567$, $6789$ sequences are not allowed?

Published on 29 Mar 2026 - 17:59

score 186 · Answer 10 · 2026-03-29 07:29:04

186

Views

Determine a basis of $S=\{ (z_1,z_2,z_3) \in \mathbb C^{3} \mid z_1 +z_2 = 0 \}$ over $\mathbb R$ vector space

Published on 29 Mar 2026 - 7:29

score 63 · Answer 11 · 2026-03-22 11:59:22

63

Views

Generating digits $0$ to $9$ with a coin

Published on 22 Mar 2026 - 11:59

score 104 · Answer 12 · 2018-06-12 20:37:39

104

Views

Does $\pi$ consist of $\pi$ in it?

Published on 12 Jun 2018 - 20:37

score 991 · Answer 13 · 2026-04-01 09:38:17

991

Views

Is boundary of $X=\emptyset$ where $(X,d)$ is a metric space

Published on 01 Apr 2026 - 9:38

score 485 · Answer 14 · 2026-03-25 22:04:51

485

Views

Concerning the demonstration of $W_e^{\perp} = W_o$ over $V = C[-1,1]$.

Published on 25 Mar 2026 - 22:04

score 4.1k · Answer 15 · 2026-03-21 06:02:59

4.1k

Views

If $\gcd(a,b)=1$, then $\operatorname{lcm}(a,b)=ab$

Published on 21 Mar 2026 - 6:02

List Question

How do I factorize $a^n-b^n$?

Find the volume of the solid bounded by $z=x^2 + y^2$, $x+z=0$ - correctness of solution

The Redundancy of applying the Gram-Schmidt Procedure on an orthogonal subset of $V$.

Existence of a ball whose images under two continuous functions are disjoint.

Check my proof that the nilradical and the Jacobson radical are equal (A&M 1.6)

How many ways are there to choose strings of length $3$ from $S=\{1,2,3,4\}$ for $3$ people if each each digit from $S$ has to appear at least once?

In how many ways can string $123456$ be rearranged if at least one character needs to move more than one place from its original position?

If $\prod X_{\alpha}$ is locally compact $\Rightarrow$ each...

How many permutations of $0123456789$ are possible if $0123$, $2345$, $4567$, $6789$ sequences are not allowed?

Determine a basis of $S=\{ (z_1,z_2,z_3) \in \mathbb C^{3} \mid z_1 +z_2 = 0 \}$ over $\mathbb R$ vector space

Generating digits $0$ to $9$ with a coin

Does $\pi$ consist of $\pi$ in it?

Is boundary of $X=\emptyset$ where $(X,d)$ is a metric space

Concerning the demonstration of $W_e^{\perp} = W_o$ over $V = C[-1,1]$.

If $\gcd(a,b)=1$, then $\operatorname{lcm}(a,b)=ab$

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