Khan/khan-exercises — Issue #9203: Trigonometry challenge - i can't see the problem
Author: KhanBugz
Created: 2011-12-21 19:51:47+00:00
State: open
Labels: ie8, not-showing, win7

Reporter: lydiawang937@gmail.com

i can't see the question

[trigonometry_challenge.html?seed=161&problem=25 (graphs_of_sine_and_cosine)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=161&problem=25&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=161&problem=25&debug&activity=undefined)

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Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C)

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