$\lim _{x \rightarrow 2}(x-1)^{\frac{1}{3 x-6}}=$
$\lim _{x \rightarrow 2}(x-1)^{\frac{1}{3 x-6}}=$
- $\mathrm{e}^2$
- $\mathrm{e}^3$
- $\mathrm{e}^{\frac{1}{3}}$
- $\mathrm{e}^{\frac{1}{2}}$
Solution
$\begin{aligned} & \lim _{x \rightarrow 2}(x-1)^{\frac{1}{3 x-6}} \\ & =\lim _{x \rightarrow 2}(x-2+1)^{\frac{1}{3(x-2)}}=\lim _{x \rightarrow 2}\left\{[1+(x-2)]^{\frac{1}{(x-2)}}\right\}^{\frac{1}{3}}=e^{\frac{1}{3}}\end{aligned}$
Asked in: MHT CET 2021 (22 Sep Shift 2)
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