Khan/khan-exercises — Issue #5119: Chain rule 1 - there is a problem with devrivetive answer.
Author: KhanBugz
Created: 2011-10-28 03:07:27+00:00
State: open
Labels: firefox, snowleo

Reporter: wilhelm_reich@hotmail.com

Chain Rule 1

i was solvin practise problems but there is a mistake in answer. derivetive of 2 must be zero but it shows as 2.

[chain_rule_1.html?seed=60&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/chain_rule_1.html?seed=60&problem=0&debug)

["None of the above.","(3(-5x^{4}-2x^{3}-x^{2}-2x-2-6x^{-1})^{2})(-20x^{3}-6x^{2}-2x-2+6x^{-2})"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:6.0.2) Gecko/20100101 Firefox/6.0.2

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