Вариант 10 ИДЗ 5.2

EDS - 5.2
№1.10. Prove that the functions f (x) = 3x2 / (2 + x) and φ (x) = 7x2 as x → 0 are infinitely small of the same order of smallness.
№2.10 Find the limits.
№3.10 Investigate these functions for continuity and build their graphs.
№4.10 Investigate these functions for continuity at the specified points.