Khan/khan-exercises — Issue #11638: Trigonometry challenge - sorry this is a mistack?
Author: KhanBugz
Created: 2012-01-19 21:13:10+00:00
State: open
Labels: chrome, wrong-or-unclear, xp

Reporter: pupj000139180@hotmail.com

hi

[trigonometry_challenge.html?seed=181&problem=12 (inverse_trig_functions)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=181&problem=12&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=181&problem=12&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7

MathJax is loaded, ready, queue length: 0