giới hạn

L

luffy_95

cac dang vo dinh nhu [TEX]\frac{0}{0}[/TEX] [TEX]\frac{\infty}{\infty}[/TEX]
[TEX]\infty-\infty[/TEX],[TEX]\frac{0}{\infty}[/TEX].........
\Rightarrow
phuong phap
thuong nhan voi bieu thuc lien hop, them bot,dat an phu..........
 
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