Question Number 9782 by tawakalitu last updated on 03/Jan/17
$$\int\:\:\frac{\mathrm{sin}^{\mathrm{4}} \left(\mathrm{x}\right)}{\mathrm{sin}^{\mathrm{3}} \left(\mathrm{x}\right)\:+\:\mathrm{cos}^{\mathrm{4}} \left(\mathrm{x}\right)}\:\mathrm{dx} \\ $$