Question Number 45163 by prashant@1234 last updated on 09/Oct/18
$$\mathrm{Evaluate}\:\int_{\mathrm{0}} ^{\infty} \int_{\mathrm{0}} ^{\mathrm{t}} \mathrm{e}^{−\mathrm{t}} \frac{\mathrm{sinu}}{\mathrm{u}}\mathrm{du}\:\mathrm{dt} \\ $$
Evaluate-0-0-t-e-t-sinu-u-du-dt-