Question

Ребят,решите 7 задание

Answer 1

$frac{a^2b^2}{a^2+2ab+b^2} : frac{ab}{a+b} = frac{a^2b^2}{(a+b)^2} cdot frac{a+b}{ab} = frac{ab}{a+b} = frac{(4- sqrt{3} )(4+sqrt{3})}{4-sqrt{3}+4+sqrt{3}} = frac{1}{8}$