Question Number 128026 by Ar Brandon last updated on 03/Jan/21
$$\int_{\frac{\pi}{\mathrm{2}}} ^{\frac{\mathrm{2}\pi}{\mathrm{3}}} \frac{\left(\mathrm{arcsinhx}\right)^{\mathrm{2}} }{\mathrm{2cosx}}\mathrm{dx} \\ $$
pi-2-2pi-3-arcsinhx-2-2cosx-dx-