This is a question that involves chain rule, hyperbolas (reciprocal functions) and limits. Try it yourself first then have a look at the answer :)
Posted from my blog with SteemPress : http://magicmonktutorials.com/blog/2018/12/19/chain-rule-problem-solving-question/

Mathematics & Digital Technologies Education
Videos, quizzes, and other learning resources
Eddie the Magic Monk has 14 years teaching experience as a high school teacher in Australia. He will explain things to you in the simplest way possible to help you fully understand high school mathematics and computer science concepts.
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Hi @magicmonk!
Your post was upvoted by @steem-ua, new Steem dApp, using UserAuthority for algorithmic post curation!
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In our last Algorithmic Curation Round, consisting of 207 contributions, your post is ranked at #29.
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