Вариант 8 ИДЗ 5.2

EDS - 5.2
№1.8 Prove that the function f (x) = sinx + sin5x; (x) = 2x as x → 0 are infinitesimal of the same order of smallness.
№2.8 Find the limits.
№ 3.8 Investigate these functions for continuity and build their graphs.
№4.8 Investigate these functions for continuity at the specified points. f (x) = ....; x1 = 3; x2 = 4;