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Nov
25
reviewed Approve Consider the following limit: $\lim_{n \to \infty } \frac{\ln(1+n)-\ln(n^{2})}{\sin(1/n)}$
Jul
15
reviewed Edit nth term derivative with f(0) plugged in
Jun
13
reviewed Approve Multiplicative inverse of $0$
Apr
25
reviewed Approve Determinant of a sum of matrices
Mar
29
reviewed Approve About $ \lim_{x\rightarrow 0}\frac {\sin x}{x} = 1$
Mar
13
reviewed Approve $SO(n)$ is connected
Mar
12
reviewed Approve Should an undergrad accept that some things don't make sense, or study the foundation of mathematics to resolve this?
Mar
6
reviewed Approve Solve the differential equation: $(y^2-xy)dx+x^2dy=0$
Feb
28
reviewed Approve If $x=1\mod3$ and $x=0\mod2$, what is it $\mod6$?
Feb
26
reviewed Reject Multiplying matrices of matrices
Feb
24
reviewed Approve Indefinite Integral $\int \sin (x) \ln (\tan (x))dx$
Feb
9
reviewed Approve Is there a method to memorizing $\pi$?
Jan
6
reviewed Approve How to form a differential equation, given temperature and direction of heat flow
Jan
5
reviewed Reject Prove that $4$ is the only solution to $2+2$.
Dec
6
reviewed Leave Open Are all good mathematicians fluent in computational aspects of mathematics
Dec
6
reviewed Edit Using Laplace transform to solve an IVP
Nov
24
reviewed Edit How to prove the equation $\cos x=2x$ has only one solution?
Sep
17
reviewed Reject Property of $W_0^{1,p}(\Omega)$
Aug
4
reviewed Edit Compute $\int_{\mathbb {R}}\sin \left(\frac {\pi x}{x^2+1}\right)\frac{1}{x^2+1} dx$
May
3
reviewed Looks OK Fourier Transform calculation