Khan/khan-exercises — Issue #11013: Quotient rule - Wrong rule used in explanation of Answer
Author: KhanBugz
Created: 2012-01-12 04:06:29+00:00
State: open
Labels: firefox, other, snowleo

Reporter: dang.h.le@gmail.com

The First step in the "Show Solution" says, "Using the chain rule and the PRODUCT rule, we know...", when in it should be the QUOTIENT rule.

[quotient_rule.html?seed=46&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quotient_rule.html?seed=46&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quotient_rule.html?seed=46&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%22%3Ccode%20style%3D%5C%5C%5C%22display%3A%20none%3B%5C%5C%5C%22%3E%5C%5C%5C%5Cdfrac%7B(%5C%5C%5C%5Ccos%7Bx%7D\)(%5C%5C%5C%5Ctan%7Bx%7D\)-(%5C%5C%5C%5Csec%5E%7B2%7D%20%7Bx%7D\)(%5C%5C%5C%5Csin%7Bx%7D\)%7D%7B(%5C%5C%5C%5Ctan%7Bx%7D\)%5E2%7D%3C%2Fcode%3E%5C%22%22%2C98%5D%5D)

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

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:8.0.1) Gecko/20100101 Firefox/8.0.1

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