Khan/khan-exercises — Issue #5577: Trigonometry challenge - trig questions 
Author: KhanBugz
Created: 2011-11-04 16:39:18+00:00
State: open
Labels: ie8, ie9, vista

f(x) is graphed below

(no graph displayed !)

What is f(x)

[trigonometry_challenge.html?seed=36&problem=6 (graphs_of_sine_and_cosine)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=36&problem=6&debug)

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MathJax is loaded, ready, queue length: 0