Вариант 29 ИДЗ 5.2

EDS - 5.2
№1.29 Prove that the functions f (x) = √9 – x - 3; φ (x) = 2x as x → 0 are infinitesimal of the same order of smallness.
№2.29 Find the limits.
№3.29 Investigate these functions for continuity and build their graphs.
№4.29 Investigate these functions for continuity at the specified points. f (x) = ....; x1 = 3; x2 = 4;