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second derivative of the inverse function
Independent, Identically Distributed Random Variables
Find the acute angle $x$ for $\tan x = \tan(x+10^\circ)\tan(x+20^\circ)\tan(x+30^\circ)$.
If $f$ is twice differentiable, $(f(y) – f(x))/(y-x)$ is is differentiable
Proving the converse of an IMO problem: are there infinitely many pairs of positive integers (m,n) such that m divides n^2 + 1 and n divides m^2 + 1?
Integral $ \int_0^\infty \frac{\ln(1+\sigma x)\ln(1+\omega x^2)}{x^3}dx$
If a Sequence of Polynomials Converge to Another Polynomial Then the Roots Also Converge.
How many different arrangements?
Why isn't there a uniform probability distribution over the positive real numbers?
How find this inequality $\max{\left(\min{\left(|a-b|,|b-c|,|c-d|,|d-e|,|e-a|\right)}\right)}$
Expression from generators of Special Linear Groups II
Mandelbrot set: periodicity of secondary and subsequent bulbs as multiples of their parent bulbs
Interpolating function for a nested radical $y_x=\sqrt{a+y_{x-1}}$
Imaginary-Order Derivative
If an Abelian group $G$ has order $n$ and at most one subgroup of order $d$ for all $d$ dividing $n$ then $G$ is cyclic