Question Number 134456 by bramlexs22 last updated on 03/Mar/21
$$\underset{−\infty} {\int}^{\:\:\:\:\infty} \frac{\mathrm{sin}\:^{\mathrm{3}} \mathrm{x}}{\mathrm{x}^{\mathrm{3}} }\:\mathrm{dx}\:? \\ $$
Commented by EDWIN88 last updated on 04/Mar/21
$$=\:\frac{\mathrm{3}\pi}{\mathrm{4}} \\ $$