Khan/khan-exercises — Issue #5682: Trigonometry challenge - No sin/cosine graph appears on exercise
Author: KhanBugz
Created: 2011-11-06 20:44:45+00:00
State: open
Labels: ie8, ie9, vista

Reporter: philgeorge@reachone.com

On the trig challenge, whenever they ask a "graph sine or cosine" problem, no graph appears - so I'm forced to use the hint button to continue.

[trigonometry_challenge.html?seed=143&problem=6 (graphs_of_sine_and_cosine)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=143&problem=6&debug)

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