Khan/khan-exercises — Issue #14689: Inverse trig functions - Inverse trig funtions
Author: KhanBugz
Created: 2012-02-26 15:30:40+00:00
State: open
Labels: chrome, hard, win7

Reporter: debbie.hoffele@gmail.com

I don't follow how you go from the 2nd last step to the last step of the solution, an extra step would help - like do you use the unit circle?

[inverse_trig_functions.html?seed=185&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/inverse_trig_functions.html?seed=185&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/inverse_trig_functions.html?seed=185&problem=0&debug&activity=%5B%5B%22hint-activity%22%2C%220%22%2C302%5D%2C%5B%22hint-activity%22%2C%220%22%2C308%5D%2C%5B%22hint-activity%22%2C%220%22%2C311%5D%2C%5B%22hint-activity%22%2C%220%22%2C321%5D%2C%5B%22hint-activity%22%2C%220%22%2C358%5D%2C%5B%22hint-activity%22%2C%220%22%2C386%5D%5D)

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Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11

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