Рябушко А.П. ИДЗ 5.2 вариант 6

DHS - 5.2
№1.6 Prove that the function f (x) = 1 - cos4x; φ (x) = 6x2 as x → 0 are the infinitesimal of the same order of smallness.
№2.6 Find limits.
№3.6 investigate these functions continuity and build their schedules.
№4.6 investigate these functions continuity at these points. f (x) = ....; x1 = 0; x2 = 2;

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