Question

Помогите с алгеброй, даю 30 баллов. спасибо заранее

Answer 1

а). lim (x→2) 5x^3-6x^2+x-5 = 5*8-6*4+2-5 = 40-24-3 = 40-27 = 13.
б). lim(x→2) 4/4x-8 = 4/4*2-8 = 4/0 = оо.

Answer 2

$1); ; limlimits _{x to 2}(5x^3-6x^2+x+5)=limlimits _{x to 2}(5cdot 2^3-6cdot 2^2+2-5)=13\\\2); ; limlimits_{x to 2}frac{4}{4x-8}=limlimits _{x to 2}frac{4}{4cdot 2-8}=Big [; frac{4}{0}; Big ]=infty$