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MHT CET · Maths · Limits

\(\lim _{x \rightarrow 2}(x-1)^{\frac{1}{3 x-6}}=\)

  1. A \(\mathrm{e}^2\)
  2. B \(\mathrm{e}^3\)
  3. C \(\mathrm{e}^{\frac{1}{3}}\)
  4. D \(\mathrm{e}^{\frac{1}{2}}\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(\mathrm{e}^{\frac{1}{3}}\)

Step-by-step Solution

Detailed explanation

\(\begin{aligned} & \lim _{x \rightarrow 2}(x-1)^{\frac{1}{3 x-6}} \\ & =\lim _{x \rightarrow 2}(x-2+1)^{\frac{1}{3(x-2)}}=\lim _{x \rightarrow 2}\left\{[1+(x-2)]^{\frac{1}{(x-2)}}\right\}^{\frac{1}{3}}=e^{\frac{1}{3}}\end{aligned}\)