Help check this for me?

[krtxmrtz]

What's the derivative of

(e^x - e^(-x)) / (e^x + e^(-x))???

My answer is (e^2x + e^-2x) - (e^2x + e^-2x)/ (e^x + e^-x)2

Correct? If not, can show me your workings?

I don't think so. Show us your workings so we can see where you stumbled.