Question

[Nguyễn Khánh Linh]

Câu 3 : Giác các bất phương trình sau

a , \(\frac{2}{x-1}< \frac{5}{2x-1}\)

b , \(\frac{1}{x+1}< \frac{1}{\left(x-1\right)^2}\)

c , \(\frac{1}{x}+\frac{2}{x+4}< \frac{3}{x+3}\)

d , \(\frac{x^2-3x+1}{x^2-1}< 1\)

e , \(\frac{3}{2-x}< 1\)

f , \(\frac{x^2+x-3}{x^2-4}\ge1\)

g , \(\frac{1}{x-1}+\frac{1}{x+2}>\frac{1}{x-2}\)

h , \(\frac{3x-4}{x-2}>1\)

i , \(\frac{2x-5}{2-x}\ge-1\)

k , \(\frac{-4}{3x+1}< \frac{3}{2-x}\)

l , \(\frac{2}{x-3}+\frac{4}{x+3}\le\frac{5x-1}{x^2-9}\)

m , \(\frac{x+1}{18}+\frac{-2x+1}{9}\le1\)