Question

Помогииииитеее!!!!!!!!!!!!!!!!!!!!! $( frac{ sqrt{5} }{ sqrt{5}-2 } - frac{5}{2+ sqrt{5} } )$

Answer 1

Решение
[√5*(2 + √5) - 5*(√5 - 2)] / ((√5)² - 2²) = (2√5 + 5 - 5 + 10) / (5 - 4) =
= 2√5 + 10 = 2*(√5 + 5)