Question

Помогите решить пример, упрощая

Answer 1

$frac{2*5}{4*5^2-10*5*sqrt{3}} - frac{5sqrt{3}}{4*5^2-25*3}=\ frac{10}{100-50sqrt{3}}-frac{5sqrt{3}}{100-75}=\ frac{1}{5(2-sqrt{3})}-frac{sqrt{3}}{5}=\ frac{1-sqrt{3}(2-sqrt{3})}{5(2-sqrt{3})}=\ frac{2(2-sqrt{3})}{5(2-sqrt{3})}=frac{2}{5}$