Top network posts

• 29 Showing that $f(x)=\frac x{x+1}$ is the unique function satisfying $f(x)+f\left(\frac1x\right)=1$ and $f(2x)=2f\big(f(x)\big)$
• 21 Prove that $f(1999)=1999$
• 21 Did the Romans ever combine Greek and Latin morphemes?
• 14 Prove $ \sin x + \frac{ \sin3x }{3} + ... + \frac{ \sin((2n-1)x) }{2n-1} >0 $
• 12 Why isn't "Puto deus fio" grammatically incorrect?
• 12 What is an Adverbial Accusative?
• 10 Proof of Euler's formula that doesn't use differentiation?
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