Khan/khan-exercises — Issue #12054: Inverse trig functions - Won't Accept Answer
Author: KhanBugz
Created: 2012-01-25 03:06:51+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

On the inverse trig function it won't accept the answer of −60°. I tried inputing -60 and it wouldn't take it. After showing the answer I copy and pasted it into the answer box and it still won't take it.

[inverse_trig_functions.html?seed=117&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/inverse_trig_functions.html?seed=117&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/inverse_trig_functions.html?seed=117&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22-30%5C%22%22%2C28%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-60%5C%22%22%2C37%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-60%5C%22%22%2C15%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-60%5C%22%22%2C83%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-60%5C%22%22%2C2%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22%E2%88%9260%C2%B0%5C%22%22%2C31%5D%5D)

["-30","-60","-60","-60","-60","−60°"]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0.1) Gecko/20100101 Firefox/9.0.1

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