Top network posts

• 49 Helix with a helix as its axis
• 18 Short proof for the determinant of a $4$ by $4$ matrix
• 12 Why do we (mostly) restrict ourselves to Latin and Greek symbols?
• 11 Prove $\frac{a^3+b^3+c^3}{3}\frac{a^7+b^7+c^7}{7} = \left(\frac{a^5+b^5+c^5}{5}\right)^2$ if $a+b+c=0$
• 11 Prove $a^{2}(1+b^{2})+b^{2}(1+c^{2})+c^{2}(1+a^2)\geq 6abc$
• 11 Series of Nested Radicals
• 8 Is there a formula for $\sin(xy)$
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