Рябушко А.П. ИДЗ 5.2 вариант 21

DHS - 5.2
№1.21 Prove that the function f (x) = √4 + x - 2; φ (x) = 3x as x → 0 are the infinitesimal of the same order of smallness.
Find №2.21 limits.
№3.21 investigate these functions continuity and build their schedules.
№4.21 investigate these functions continuity at these points. f (x) = ....; x1 = 2; x2 = 3.

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