2х/(х^2-1)
Если х=1/3, то:
(2*1/3)/((1/3)^2-1)=-((2/3)/(8/9))=-((2/3)*(9/8))
Сокращяем 2 и 8, 3 и 9:
=-3/4=-0.75
2х/(х^2-1)
Если х=1/3, то:
(2*1/3)/((1/3)^2-1)=-((2/3)/(8/9))=-((2/3)*(9/8))
Сокращяем 2 и 8, 3 и 9:
=-3/4=-0.75