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Question Number 104812 by bobhans last updated on 24/Jul/20

$$\underset{x\to \mathrm{\infty }}{\lim }\frac{\left(\frac{3}{x}\right)}{{(\frac{2}{x}+5)}^2-25}?$$

Answered by bemath last updated on 24/Jul/20

$$set\frac{1}{x}=a,a\to 0$$$$\underset{a\to 0}{\lim }\frac{3a}{{(2a+5)}^2-25}=\underset{a\to 0}{\lim }\frac{3}{2.2(2a+5)}$$$$=\frac{3}{20}★$$

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