Question Number 42630 by prof Abdo imad last updated on 29/Aug/18
$${let}\:{f}\left({x}\right)\:=\:{e}^{{x}} −\mathrm{2}\sqrt{{x}−\mathrm{3}} \\ $$$$\left.\mathrm{1}\right)\:{find}\:{f}^{−\mathrm{1}} \left({x}\right) \\ $$$$\left.\mathrm{2}\right)\:{find}\:\int\:\:{f}^{−\mathrm{1}} \left({t}\right){dt}\: \\ $$