T
tigerboy


Cho [TEX]a_n + b_n\sqrt{2} = ( 2 + \sqrt{2} )^n[/TEX]với [TEX]n \in N*[/TEX].
Tính [TEX]\lim_{x\to+\infty} \frac{a_n}{b_n}[/TEX].
Tính [TEX]\lim_{x\to+\infty} \frac{a_n}{b_n}[/TEX].
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