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Nighty's user avatar
Nighty's user avatar
Nighty
  • Member for 9 years, 2 months
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7 votes
1 answer
5k views

Prove that stabilizer subgroups of G are conjugate to each other

7 votes
0 answers
1k views

Product of reduced row-echelon matrices is also reduced row-echelon

7 votes
4 answers
11k views

Permutation of multiset

5 votes
1 answer
2k views

Removing balls from an urn in pairs: expected number of pairs in which both are red

5 votes
0 answers
238 views

Convergence of iteration scheme of solving matrix equations

4 votes
3 answers
141 views

Use of bracket - Why do we use bracket in cases like $2+(-3)$?

4 votes
3 answers
204 views

Interpreting the supremum

4 votes
4 answers
2k views

Show that $[0,1] \cap \mathbb{Q}$ is not compact in $[0,1]$

4 votes
2 answers
4k views

$\bar S$ is the smallest closed subsets of $X$ which contains $S$

3 votes
2 answers
4k views

Every finite $p$-group is solvable

3 votes
3 answers
3k views

Poisson Process: Finding the sum of interarrivial time

3 votes
3 answers
469 views

Prove that Aut$(G) \cong \mathbb{Z}_4$

3 votes
2 answers
851 views

How to find Radius of Convergence in general?

3 votes
4 answers
8k views

Number of squarefree positive integers less than $100$

3 votes
2 answers
1k views

Proof of Cauchy Integral Formula

3 votes
2 answers
560 views

Alternative proof of '$I$ is maximal iff $R/I$ is a field'

3 votes
1 answer
161 views

Find $\mathbf{F}$ such that $\nabla \times \mathbf{F} = (-3xz^2, 0, z^3)$

3 votes
1 answer
459 views

IVP of second order linear ODE

3 votes
1 answer
542 views

How many significant figures are there after $96$ is correct to $1$ significant figure?

3 votes
4 answers
243 views

Reference Needed: $m$-faced dice with $n$ options

3 votes
2 answers
284 views

Permutation: 16 students in 2 rows

3 votes
2 answers
130 views

Logic: If $\frac{1}{x} > 0.5$, then $x$ can be any real number smaller than $2$?

2 votes
1 answer
52 views

Finding the length of an equal side of an isosceles triangle

2 votes
2 answers
566 views

Mean of any 5 numbers is 30, find the sum of all numbers

2 votes
5 answers
160 views

Complete factorization of $64y^6 - 1$

2 votes
1 answer
2k views

Conformal iff $E=G$ and $F=0$

2 votes
1 answer
412 views

Number of Dyck paths with maximal odd sequence of $(1,-1)$ ending on the $x$-axis

2 votes
1 answer
900 views

Is Tetris a packing or covering problem?

2 votes
1 answer
72 views

What does it mean by saying that a number is 'asymptotic to ' another number?

2 votes
1 answer
1k views

Surface Integral without Parametrization