## Proof without Words: Angle Sum and Difference Formulas

One of my favorite images:

Posted 4 March, 2013 by in Classroom, Trigonography

## This … is … “Maximal Jeopardy!”

What’s the largest possible amount of money you can win in a single game of TV’s “Jeopardy!”? Read my note This … is … “Maximal Jeopardy!” to find out.

Posted 2 February, 2013 by in Classroom, Misc. Math

## Master of the Puniverse

… for non-negative $$x$$ and real $$n$$, not both zero.

Posted 15 August, 2012 by in Classroom, Misc. Math