User:Will.octagon.gibson

Hi. I joined and made my first Wikipedia edit on Monday October 13, 2014.

I am a mathematician specializing in recreational mathematics.

I make/solve various Mathematical puzzles.

A lovely trigonometric identity that I created:

$(\sin \theta +\csc \theta )^{2}+(\cos \theta +\sec \theta )^{2}-(\tan \theta -\cot \theta )^{2}=9$

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If you love proving trigonometric identities or if you are preparing for a trigonometry test, check out my TRIGONOMETRIC IDENTITIES WORKBOOK at the Internet Archive. It contains 21 examples of proofs of trigonometric identities and several identities for you to prove.

The workbook is available at:

https://archive.org/details/@will_octagon_gibson