Each of x, y and z is a rational number such that: x + y * ³√2 + z * ³√4 = 0.

Prove that x=y=z=0 is the only possible solution to the above equation.

(In reply to re(5): Solution - Extra font facility by Charlie)

So, aside from the poor choice of making a facility that doesn't work in IE, that becomes doubly troubling when another feature causes problems when using Firefox. You have to use Firefox to use the special-character button, but IE if you are going to paste a table of values, swipe it, and convert it to pre-formatted, without having it switch to being double-spaced.

Posted by Charlie on 2009-10-16 12:25:53