Find lim⁡x→14x−2xx−1\displaystyle \lim_{x\to 1} \dfrac{4^{x}-2^{x}}{x-1}.

Mathematics

Problem

Find lim⁡x→14x−2xx−1\displaystyle \lim_{x\to 1} \dfrac{4^{x}-2^{x}}{x-1}.

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