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Jul
3
reviewed Reject Geometry triangle question
Jul
1
reviewed Approve Limit (in probability) of sequence of independent random variables
Jul
1
comment Asymptotic behaviour of $\int_0^1 g(x)\exp(-nx)dx$ as $n\rightarrow\infty$
What does $\Theta$ stand for? This integral can be evaluated by iterating integration by parts obtaining a meaningful asymptotic series in $1/n$.
Jul
1
reviewed Edit $\int \frac{q}{\sqrt[3]{k^3-q^3+\frac{3 }{8}q^2}} \, dq$ where $k = 0.14$
Jul
1
revised $\int \frac{q}{\sqrt[3]{k^3-q^3+\frac{3 }{8}q^2}} \, dq$ where $k = 0.14$
Reformatted and fixed grammar
Jul
1
reviewed Reject How many squares actually ARE in this picture? Is this a trick question with no right answer?
Jun
26
reviewed Approve Linear first order ODE doubt
Jun
25
reviewed Approve Finding numbers and Arithmetic progression
Jun
15
reviewed Reject Is this proof of the infinitude of primes valid?
Jun
15
reviewed Approve Combination problem: retrieve four kinds of objects with restriction
Jun
15
reviewed Reject Let $S = \{1,2,…,n+1\},n\geq2$ and $T = \{(x,y,z)\in S^3 | x<z\ and\ y<z\}$. Find $|T|$
Jun
15
reviewed Approve Poisson's integral equation
Jun
5
reviewed Approve Finding maximum height with given velocity.
Jun
5
reviewed Reject Riemann zeta function, representation as a limit
Jun
5
reviewed Approve $\log(1+i)=\frac 12\log2+i(\frac{\pi}{4}+2k\pi)$, where's the$ 1/2$ from?
May
27
reviewed Edit Standard integral Kähler form on $\mathbf{CP}^1 \times \mathbf{CP}^2$
May
27
revised Standard integral Kähler form on $\mathbf{CP}^1 \times \mathbf{CP}^2$
Latex Fixed
May
27
comment prove $\sum \limits_{k=1}^n A(n,k){x+k-1 \choose n}=x^n$
Have you an explicit formula for $A(n,k)$?
May
27
comment prove $\sum \limits_{k=1}^n A(n,k){x+k-1 \choose n}=x^n$
Use $A(n+1,k)=kA(n,k)+(n-k+2)A(n,k-1)$ that you stated was given from the start.
May
27
reviewed Approve How to calculate the integral of $f(x)$?