find f'(x) if f(x)=sinh(cosh(x)) isnt this just... cosh(cosh(x))*-sinh(x)???
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Hello Asuhuman18 Originally Posted by Asuhuman18 find f'(x) if f(x)=sinh(cosh(x)) isnt this just... cosh(cosh(x))*-sinh(x)??? No. The derivative of $\displaystyle \cosh(x)$ is $\displaystyle \sinh(x)$, not $\displaystyle -\sinh (x)$. So the answer is $\displaystyle \cosh(\cosh(x))\sinh(x)$. Grandad
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