Question Number 156381 by aliyn last updated on 10/Oct/21
$$\int_{\mathrm{0}} ^{\:\frac{\boldsymbol{\pi}}{\mathrm{2}}} \:\frac{\boldsymbol{{x}}^{\mathrm{2}} }{\boldsymbol{{sin}}\left(\boldsymbol{{x}}\right)}\:\boldsymbol{{dx}} \\ $$
Commented by aliyn last updated on 11/Oct/21
$$???? \\ $$