Упрости выражение.

\(\dfrac{\dfrac{1}{x}-\dfrac{1}{x-y}+\dfrac{1}{y}}{\dfrac{1}{x-y}+\dfrac{1}{x}+\dfrac{1}{y}}\)

Выбери верный вариант.

• \(\dfrac{x^2+xy+y^2}{x^2+xy-y^2}\)
• \(\dfrac{x^2-xy-y^2}{x^2+xy+y^2}\)
• \(\dfrac{x^2+xy-y^2}{x^2-xy+y^2}\)
• \(\dfrac{x^2-xy-y^2}{x^2+xy-y^2}\)