Khan/khan-exercises — Issue #8930: Trigonometry challenge - Website keeps freezing and unable to use scratchpad
Author: KhanBugz
Created: 2011-12-18 21:36:48+00:00
State: open
Labels: ie8, not-showing, vista

[trigonometry_challenge.html?seed=23&problem=1 (trig_identities_1)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=23&problem=1&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=23&problem=1&debug&activity=%5B%5D)

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Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; GTB7.2; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30618; AskTbLMW2/5.13.2.19379)

MathJax is loaded, ready, queue length: 0