Khan/khan-exercises — Issue #11160: Chain rule 1 - the leson video will not work 
Author: KhanBugz
Created: 2012-01-13 20:19:37+00:00
State: open
Labels: chrome, other, xp

[chain_rule_1.html?seed=114&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/chain_rule_1.html?seed=114&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/chain_rule_1.html?seed=114&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%5Ccos%5E%7B2%7D%20%7Bx%7D\)(%5C%5C%5C%5Csin%7Bx%7D\)%3C%2Fcode%3E%5C%22%22%2C85%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22%3Ccode%20style%3D%5C%5C%5C%22display%3A%20none%3B%20%5C%5C%5C%22%3E(3%5C%5C%5C%5Ccos%5E%7B2%7D%20%7Bx%7D\)(-%5C%5C%5C%5Csec%7Bx%7D\)%3C%2Fcode%3E%5C%22%22%2C3%5D%2C%5B%22correct-activity%22%2C%22%5C%22%3Ccode%20style%3D%5C%5C%5C%22display%3A%20none%3B%20%5C%5C%5C%22%3E(3%5C%5C%5C%5Ccos%5E%7B2%7D%20%7Bx%7D\)(-%5C%5C%5C%5Csin%7Bx%7D\)%3C%2Fcode%3E%5C%22%22%2C2%5D%5D)

["(\\cos^{2} {x})(\\sin{x})","(3\\cos^{2} {x})(-\\sec{x})","(3\\cos^{2} {x})(-\\sin{x})"]

Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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