Question Number 9863 by richard last updated on 10/Jan/17
$$\mathrm{the}\:\mathrm{value}\:\mathrm{of}: \\ $$$$\underset{\mathrm{0}} {\overset{\pi/\mathrm{2}} {\int}}\frac{\mathrm{1}}{\mathrm{1}+\mathrm{tan}^{\mathrm{3}} {x}}\:{dx} \\ $$
the-value-of-0-pi-2-1-1-tan-3-x-dx-