Apparently, this user prefers to keep an air of mystery about them.
7 Find the minimum value of $|\sin x+\cos x+\tan x+\cot x+\sec x+\csc x|$ for real numbers $x$ Feb 13 '13
6 If $a$ and $b$ are two roots of $x^4 + x^3 - 1 = 0$ prove that $ab$ is a root of $x^6 + x^4 + x^3 - x^2 - 1$. Feb 13 '13
1 Find the length of the shortest path from the point (3,5) to the point (8,2) that touches the x-axis and also touches the y-axis Feb 10 '13
1 Prove if $a,b,c$ are integers and $9\mid a^2+b^2+c^2$ then $9\mid a^2-b^2$ or $9\mid a^2-c^2$ or $9\mid b^2-c^2$ Feb 13 '13