Giới hạn hàm số

N

nguyenbahiep1

$\lim_{ x \to 1^+} \frac{\sqrt{(x-1)(x+1)}+\frac{x-1}{\sqrt{x}+1}}{\sqrt{x-1}} \\ \\ \lim_{ x \to 1^+} \frac{\sqrt{x+1}+\frac{\sqrt{x-1}}{\sqrt{x}+1}}{1} = \sqrt{2} $
 
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