Відповіді АЛГЕБРА: 17.5

17.5

1) lim x2+ 7x-1 = –7;

x → 0

2) lim (x² – 3x + 5) = 4 + 6 + 5 = 15;

x → –2

3) lim 5x-5x-1 = [00] = lim 5(x-1)x-1 = 5;

x → 1

4) lim 4- x22-x = [00] = lim2-x(2-x)2-x = 4;

x → 2 x → 2