Khan/khan-exercises — Issue #8148: Quotient rule - Tells me answer is wrong when it's right
Author: KhanBugz
Created: 2011-12-08 18:42:23+00:00
State: open
Labels: lion, safari, wrong-or-unclear

Reporter: lap.felix@gmail.com

Even the hints say i'm right

[quotient_rule.html?seed=34&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quotient_rule.html?seed=34&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quotient_rule.html?seed=34&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22%3Ccode%20style%3D%5C%5C%5C%22display%3A%20none%3B%20%5C%5C%5C%22%3E%5C%5C%5C%5Cdfrac%7B(%5C%5C%5C%5Ccos%7Bx%7D\)%5E2%2B(-%5C%5C%5C%5Csin%7Bx%7D)(%5C%5C%5C%5Csin%7Bx%7D)%7D%7B(%5C%5C%5C%5Ccos%7Bx%7D)%5E2%7D%3C%2Fcode%3E%5C%22%22%2C38%5D%2C%5B%22hint-activity%22%2C%220%22%2C48%5D%2C%5B%22hint-activity%22%2C%220%22%2C52%5D%2C%5B%22hint-activity%22%2C%220%22%2C55%5D%2C%5B%22hint-activity%22%2C%220%22%2C56%5D%2C%5B%22hint-activity%22%2C%220%22%2C57%5D%2C%5B%22hint-activity%22%2C%220%22%2C57%5D%5D)

["\\dfrac{(\\cos{x})^2+(-\\sin{x})(\\sin{x})}{(\\cos{x})^2}"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7

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