Question Number 107290 by mathmax by abdo last updated on 09/Aug/20
$$\mathrm{find}\:\mathrm{lim}_{\mathrm{n}\rightarrow+\infty} \frac{\mathrm{1}}{\mathrm{n}}\sum_{\mathrm{k}=\mathrm{0}} ^{\mathrm{n}−\mathrm{1}} \:\frac{\mathrm{k}}{\:\sqrt{\mathrm{4n}^{\mathrm{2}} −\mathrm{k}^{\mathrm{2}} }} \\ $$