МД
Марина Денисёнок
(x^4 + x^3 + x + 1) / (x^3 + x^2 + x + 1) =
(x^3 * (x + 1) + (x + 1)) / (x^2 * (x + 1) + (x + 1)) =
(x^3 + 1) / (x^2 + 1)
(x^3 + 1) -> 0
(x^2 + 1) -> 2
(x^3 + 1) / (x^2 + 1) -> 0
предел = 0