Khan/khan-exercises — Issue #15459: Trig identities 1 - You fail to accept all correct answers
Author: KhanBugz
Created: 2012-03-05 18:57:25+00:00
State: open
Labels: chrome, other, win7

Reporter: thechickenbike@gmail.com

My answer (1/sqrt2) is the more precise version of the answer (sqrt2/2). So when I solved the problem in a different fashion and got the aforementioned answer, I immediately checked the "none of the above" option and moved on. I would ask that you find some way to avoid this confusion in the future. Thank you for your consideration.

[trig_identities_1.html?seed=25&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trig_identities_1.html?seed=25&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trig_identities_1.html?seed=25&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22None%20of%20the%20above.%5C%22%22%2C348%5D%2C%5B%22hint-activity%22%2C%220%22%2C290%5D%5D)

["None of the above."]

Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/13.0.782.220 Safari/535.1

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