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Fakemistake
  • Member for 9 years, 9 months
  • Last seen more than a month ago
  • The Heart of Europe
11 votes
Accepted

difference between expectation of a random variable in measure theory and in regular calculus probability books

6 votes
Accepted

$f(A)v=f(\lambda)v$, polynomial of eigenvalues, proof.

5 votes

Proof that every group of order 4 is abelian

4 votes
Accepted

Find $\int_{L}\overrightarrow{F} \cdot d\overrightarrow{r}$

4 votes
Accepted

The set of all functions from $(0,1) \to \mathbb N$ is countable or uncountable?

4 votes
Accepted

Does this probability density function have a name?

4 votes
Accepted

Find the degree of $[F:\mathbb{Q}]$, where $F$ is the splitting field of $x^3-11$ over $\mathbb{Q}$

4 votes
Accepted

Use of Extended Cauchy Integral Formula

3 votes

Gaussian proof for the sum of squares?

3 votes

Find Differential Coefficient

3 votes
Accepted

Why is $ \sum_{k = 0}^{n}{n \choose k} (-p)^k(1-p)^{n-k} = (1 - 2p)^n $

3 votes
Accepted

Munkres wrote $(f^\sigma)^\tau=f^{\tau\circ\sigma}$ in "Analysis on Manifolds". But I proved $(f^\sigma)^\tau=f^{\sigma\circ\tau}$.

2 votes

Is the exercice in this schoolbook correct?

2 votes
Accepted

The Particular solution to a Euler/Cauchy Equation

2 votes
Accepted

Prove that $K = \{ (1); (1 2)(3 4); (1 3)(2 4); (1 4)(2 3) \} \subseteq S_4$ is a normal subgroup of $A_4$ and $S_4$

2 votes

How to calculate conditional probability with limited information?

2 votes
Accepted

Linear algebra introducing Ax=b

2 votes

Integral $\frac{d}{dx} \int_0^{e^x} \log_e t\cdot \cos^4 t\,dt$

2 votes
Accepted

How do I plot this function graphically?

2 votes

Lagrange notation: $f^{(0)}(x)$?

2 votes

Compute the Fourier series for $f(x)=x$ over the interval $-\pi\leq x \leq\pi$

2 votes
Accepted

Solution to an ODE 3

2 votes

How to find eigen values of such kind of matrices ( Matrices which are bigger than $ 3\times 3$)

2 votes

Surjective map from $\mathbb{Z}^+$ to $\mathbb{Z}$.

2 votes

How to compute $\lim\limits_{x\to 0}\dfrac{e^x-1}{x}$?

2 votes
Accepted

Show if $f$ is differentiable at $x_0$

2 votes

Definition of addition/multiplication in $\mathbb{F}$

2 votes

Logic (Negation of an expression)

2 votes

How to Construct Polynomials with known zeros

2 votes
Accepted

Getting particular solution for harmonic oscillator