sПошаговое объяснение:

1. lim x+3 = 4+3=7

2. lim (x+2.5)/(x+1/3) = 5.5/3 1/3 = 1.65

3. lim x+3 = 2+3=5

4. lim (x*x-4x+4) / (x-1.5) = - 32 / 7