I've been given a couple of problems to do, which i'm unable to because before looking at the queston i'd never even HEARD of tanh, which is just... lovely of my lecturer :grumpy:(adsbygoogle = window.adsbygoogle || []).push({});

anyway, i had a look around on some websites & fiddled around with it on my calculator and i now havesomeidea what its all about... and i do mean some. But unfortunately all i could find was d/dx(tanhx) = 1 - tanh^2x

My problems are rather more complex than the variable sitting by itself... I'd like to have a go at the actual problems myself though, so if someone could work through the one below, which is sort of similar, and explain any rules they use... it should be helpful.

f(x) = 2tanh(x(3/4)^(1/2))

f '(x) = ?

thanks

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# Differentiating tanh

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