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Intereting Posts

if $f$ is continuous on $\mathbb{R}$ and $f(r)=0,r \in \mathbb{Q}$, then $f(x)=0,x \in \mathbb{R}$
Infinite Series Manipulations
Injection from non-separable to separable subspaces
General term of Taylor Series of $\sin x$ centered at $\pi/4$
Can one prove that the fundamental group of the circle is $\mathbb Z$ without using covering spaces?
Is a decimal with a predictable pattern a rational number?
How many irreducible factors does $x^n-1$ have over finite field?
Prove that lim $(\sqrt{n^2+n}-n) = \frac{1}{2}$
Derivative of $f(x)=|x|$
Volume using Triple Integrals
Tough Inverse Fourier Transform
How to compute the integral $\int^{\infty}_{-\infty}\frac{e^{-x^2}\sin^2(x-t)}{a+\cos(x-t)} \, dx$
When is there a submersion from a sphere into a sphere?
Can $f(x,y) = |x|^y$ be be made continuous?
Difference between “only if” and “if and only if”