Lim [x → 25] √(x-5) / (x-25) = ....
Matematika
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Pertanyaan
Lim [x → 25] √(x-5) / (x-25) = ....
1 Jawaban
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1. Jawaban RexyGamaliel
[tex] \frac{\sqrt{x}-5}{x-25} \\ = \frac{\sqrt{x}-5}{(\sqrt{x}-5)(\sqrt{x}+5)} \\ = \frac{1}{\sqrt{x}+5} \\ = \frac{1}{\sqrt{25}+5} \\ = \frac{1}{10} \\ = 0,1 [/tex]