G
gakon2281997


2. tìm giới hạn
a.[tex] \lim_{x\to -\propto \ [/tex][TEX]\frac{\sqrt{5x^2 +x -2}}{1-2x}[/TEX]
b.[tex] \lim_{x\to 0}\frac{1-cosx}{x^2}[/tex]
a.[tex] \lim_{x\to -\propto \ [/tex][TEX]\frac{\sqrt{5x^2 +x -2}}{1-2x}[/TEX]
b.[tex] \lim_{x\to 0}\frac{1-cosx}{x^2}[/tex]