Posted by
**Patrick** on
.

Let y(x)=ln(cosh(x)+ sqrt(cosh^2(x)−1))

Find the derivative Dxy=

I don't know what to do with this...

Tuesday

March 28, 2017
Posted by
**Patrick** on
.

Let y(x)=ln(cosh(x)+ sqrt(cosh^2(x)−1))

Find the derivative Dxy=

I don't know what to do with this...

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