Question Number 171448 by Gbenga last updated on 15/Jun/22
$$\int_{\mathrm{0}} ^{\frac{\boldsymbol{\pi}}{\mathrm{2}}} \boldsymbol{\mathrm{x}}\sqrt{\boldsymbol{\mathrm{cos}}\left(\boldsymbol{\mathrm{x}}\right)}\boldsymbol{\mathrm{dx}}\:\:\:\boldsymbol{\mathrm{evaluate}}!!!! \\ $$