Top network posts

• 15 Showing that $\sqrt \pi$ is transcendental
• 9 Finite Abelian groups: $G \times H \cong G\times K$ then $H\cong K$
• 9 Prove that f is differentiable in $\mathbb{R}$
• 8 Proof of a trigonometric inequality
• 7 $f(x)=\displaystyle \sum\limits_{n=0}^{\infty}(-1)^n\frac{x^n}{n!n!}$ decreasing?
• 6 Show that $f(z)=\sqrt{|xy|}$ is not analytic at $(0,0)$ even though the Cauchy Riemann conditions are satisfied there.
• 6 Order of an element in the factor group divides order or element
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