Khan/khan-exercises — Issue #14472: Inverse trig functions - Domain is not defined
Author: KhanBugz
Created: 2012-02-23 02:08:24+00:00
State: open
Labels: ipad, wrong-or-unclear

Reporter: rob@dagazgroup.com

I entered 2/3 pi as the answer, which is correct. But it was counted as incorrect because the answer had to be between -1/2 pi and 1/2 pi. That needs to be stated in the problem.

[inverse_trig_functions.html?seed=146&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/inverse_trig_functions.html?seed=146&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/inverse_trig_functions.html?seed=146&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (iPad; CPU OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334

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