$\sinh x+x \cosh x$

$x \sinh x$

$\log \left(x+\sqrt{x^2+1}\right)$

$\frac{x\left(2 \sqrt{x^2-1}+1\right)}{\sqrt{x^2-1}\left(x^2+\sqrt{x^2-1}\right)}$

2

-2

1

-1

$\frac{2\left(3+2 t^5\right)}{\left(2-3 t^5\right)}$

$\frac{2 t\left(3-2 t^5\right)}{\left(2-3 t^5\right)}$

$\frac{2 t\left(3-2 t^5\right)}{\left(2+3 t^5\right)}$

$\frac{2\left(3+2 t^5\right)}{\left(2+3 t^5\right)}$