Question

Find the missing angle formed by the intersection of a diagonal and an equal line inside the square.

score 164 · Answer 1 · 2026-04-29 20:19:14

164

Views

Find the missing angle formed by the intersection of a diagonal and an equal line inside the square.

Published on 29 Apr 2026 - 20:19

score 99 · Answer 2 · 2026-04-16 12:52:09

99

Views

On the proof that $\binom{2n}{2}=2\binom{n}{2}+n^{2}$

Published on 16 Apr 2026 - 12:52

score 83 · Answer 3 · 2026-04-12 12:47:09

83

Views

Is this a valid way of showing that there are uncountably many irrational numbers?

Published on 12 Apr 2026 - 12:47

score 98 · Answer 4 · 2026-04-12 09:41:33

98

Views

trouble with proof for principle of explosion using primitive rules

Published on 12 Apr 2026 - 9:41

score 83 · Answer 5 · 2026-04-16 02:02:00

83

Views

Solve for $x$: $3^{2x}=5^{x-1}$

Published on 16 Apr 2026 - 2:02

score 41 · Answer 6 · 2026-04-12 01:50:04

41

Views

AP Precalculus matrices problem dealing with finding the area of a parallelogram

Published on 12 Apr 2026 - 1:50

score 23 · Answer 7 · 2026-04-29 21:21:45

23

Views

A triple collision of three moving spheres

Published on 29 Apr 2026 - 21:21

score 51 · Answer 8 · 2026-04-15 22:09:54

51

Views

Show this increasing function on $\Bbb R$ is discontinuous at every rational number.

Published on 15 Apr 2026 - 22:09

score 62 · Answer 9 · 2026-04-15 19:47:53

62

Views

Proof with Error, if a|b and b|c then a|c since b =ak and c=bk so c=bk=(ak)k=ak^2

Published on 15 Apr 2026 - 19:47

score 106 · Answer 10 · 2026-04-12 21:32:49

106

Views

Question about proof of problem 10.3.21 in Dummit and Foote.

Published on 12 Apr 2026 - 21:32

score 165 · Answer 11 · 2026-04-17 02:48:52

165

Views

Proving that if $H$ is not normal, then $HgH$ is not a left coset for some $g \in G$.

Published on 17 Apr 2026 - 2:48

score 51 · Answer 12 · 2026-04-16 11:34:12

51

Views

Name two intersecting lines in the attached image

Published on 16 Apr 2026 - 11:34

score 56 · Answer 13 · 2026-04-13 12:11:15

56

Views

Can i disprove an implication as i have shown in my example?

Published on 13 Apr 2026 - 12:11

score 36 · Answer 14 · 2026-04-14 23:48:53

36

Views

Does the equation $A⋆B=\{ab:(a,b)\in A×B\}$ define an operation in $\mathscr P(X)$ and is $\{x_0\}$ absorbing for $⋆$ if $x_0$ is absorbing for $$?

Published on 14 Apr 2026 - 23:48

score 40 · Answer 15 · 2026-04-15 13:08:09

40

Views

Regarding this linear algebra problem (matrix violation), I would like to ask which answer step I wrote wrong?

Published on 15 Apr 2026 - 13:08

List Question

Find the missing angle formed by the intersection of a diagonal and an equal line inside the square.

On the proof that $\binom{2n}{2}=2\binom{n}{2}+n^{2}$

Is this a valid way of showing that there are uncountably many irrational numbers?

trouble with proof for principle of explosion using primitive rules

Solve for $x$: $3^{2x}=5^{x-1}$

AP Precalculus matrices problem dealing with finding the area of a parallelogram

A triple collision of three moving spheres

Show this increasing function on $\Bbb R$ is discontinuous at every rational number.

Proof with Error, if a|b and b|c then a|c since b =ak and c=bk so c=bk=(ak)k=ak^2

Question about proof of problem 10.3.21 in Dummit and Foote.

Proving that if $H$ is not normal, then $HgH$ is not a left coset for some $g \in G$.

Name two intersecting lines in the attached image

Can i disprove an implication as i have shown in my example?

Does the equation $A⋆B=\{ab:(a,b)\in A×B\}$ define an operation in $\mathscr P(X)$ and is $\{x_0\}$ absorbing for $⋆$ if $x_0$ is absorbing for $$?

Regarding this linear algebra problem (matrix violation), I would like to ask which answer step I wrote wrong?

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