Question Number 167002 by qaz last updated on 04/Mar/22
$$\mathrm{calculate}\:\:::\:\:\underset{\mathrm{t}\rightarrow\infty} {\mathrm{lim}8}\int_{\mathrm{0}} ^{\pi/\mathrm{2}} \mathrm{e}^{\mathrm{x}} \centerdot\mathrm{sin}\:\left(\mathrm{tx}\right)\centerdot\mathrm{sin}\:\left(\mathrm{2tx}\right)\centerdot\mathrm{cos}\:\left(\mathrm{3tx}\right)\centerdot\mathrm{cos}\:\left(\mathrm{4tx}\right)\mathrm{dx}=? \\ $$