# Hyperbolic Function derivative

*label*Mathematics

*timer*Asked: Mar 27th, 2017

*account_balance_wallet*$5

### Question Description

Find the derivative. Simplify where possible.

y = sech x ( 1 + ln sech x)

## Tutor Answer

To solve this question, you need to know the following derivatives:d/dx (ln x) = 1/xd/dx (sech x) = - tanh x sech xy = sech x (1 + ln sech x)dy/dx = sech x [ d/dx (1+...

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