Potter Peterson
11/08/2023 · Senior High School
9. Para um certo número \( k \), diferente de zero, sabe-se que \( \lim _{x \rightarrow 0} \frac{e^{3 x}-e^{x}}{e^{k x}-1}=3 \) Qual é o valor de \( k \) ? \( \begin{array}{llll}\text { (A) } 3 & \text { (B) } \frac{3}{2} & \text { (C) } \frac{1}{2} & \text { (D) } \frac{2}{3}\end{array} \)
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O valor de \( k \) é \( \frac{2}{3} \), correspondendo à opção (D).
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