Khan/khan-exercises — Issue #14635: Quotient rule - This answer seems incorrect
Author: KhanBugz
Created: 2012-02-25 01:22:36+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

Reporter: Weavols@cfl.rr.com

When (sin x) is brought from the denominator it turns in to (sin x)^-1 . The derivative of this should have -(cos x)^-2 not just -(cos x) shouldn't it?

[quotient_rule.html?seed=40&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quotient_rule.html?seed=40&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quotient_rule.html?seed=40&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22None%20of%20the%20above.%5C%22%22%2C142%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C30%5D%2C%5B%22hint-activity%22%2C%220%22%2C31%5D%2C%5B%22hint-activity%22%2C%220%22%2C32%5D%2C%5B%22hint-activity%22%2C%220%22%2C34%5D%2C%5B%22hint-activity%22%2C%220%22%2C41%5D%5D)

["None of the above."]

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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