Question Number 18318 by tawa tawa last updated on 18/Jul/17
$$\int\:\frac{\mathrm{x}\:+\:\mathrm{sinx}}{\mathrm{cosx}}\:\mathrm{dx} \\ $$
Commented by alex041103 last updated on 19/Jul/17
$${i}\:{think}\:{this}\:{is}\:{not}\:{elementary} \\ $$
Commented by tawa tawa last updated on 19/Jul/17
$$\mathrm{please}\:\mathrm{help}. \\ $$
Commented by alex041103 last updated on 19/Jul/17
$${i}\:{think}\:{it}\:{is}\:{nom}−{elementary}\:{integral}. \\ $$$${This}\:{means}\:{that}\:{the}\:{anti}−{derivitive} \\ $$$${of}\:{the}\:{integrand}\:{cannot}\:{be}\:{expressed}\:{in}\:{terms}\:{of} \\ $$$${elementary}\:{functions}−{powers},\: \\ $$$${exponentials},\:{sums},\:{logs},\:{products}\:{and}\:{exetra}. \\ $$$${For}\:{example}\int\frac{{sin}\:{x}}{{x}}{dx}\:{is}\:{a} \\ $$$${non}−{elementary}\:{functions}. \\ $$