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+1 vote
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in Limit, continuity and differentiability by (25 points)
\( \lim _{x \rightarrow 0} \frac{15^{x}-3^{x}}{5^{x}-1} \)

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1 Answer

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by (65 points)

\( \begin{array}{l}\lim _{x \rightarrow 0} \frac{3^{x}\left(5^{x}-1\right)}{\left(5^{x}-1\right)}=3^{x} \\ \lim _{x \rightarrow 0} 3^{x}=1\end{array} \)

hence, 1 is answer by slight changes in O approaching by O approaching form

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