§ 34: 34.7

34.7 Знайдіть:

1) lim(2x² – 3x – 1) = lim(2x²) – lim3x – lim1 = 2 • 1² – 3 • 1 – 1 =

x→1 x→1 x→1 x→1

= 2 – 3 – 1 = –2;

2) lim(x³ –3x – 2) = limx³ – lim3x – lim2 = 2³ – 3 • 2 – 2 = 8 – 6 – 2

x→2 x→2 x→2 x→2

= 0;

3) lim x2- 3x+5x2+ 2x-1 = limx→0x2- 3x+5limx→0x2+ 2x+5 = 02- 3 • 0+502- 2 • 0-1 = –51 = –5;

x→0