Khan/khan-exercises — Issue #14967: Trigonometry challenge - Trigonometry
Author: KhanBugz
Created: 2012-02-29 16:37:57+00:00
State: open
Labels: hard, ie8, ie9, win7

Reporter: cappsmarcus@gmail.com

You need to grade the promblems like fifth and sixth grade please Sally

[trigonometry_challenge.html?seed=153&problem=25 (inverse_trig_functions)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=153&problem=25&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_challenge.html?seed=153&problem=25&debug&activity=%5B%5D)

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