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CUET · MATHS · PYQ PAPER 2023

\(\lim _{x \rightarrow \infty}\left(\frac{x+7}{x+1}\right)^x\) is equal to:

  1. A \(e\)
  2. B \(e^3\)
  3. C \(e^6\)
  4. D \(e^7\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(e^6\)

Step-by-step Solution

Detailed explanation

\( \lim _{x \rightarrow \infty}\left(\frac{x+7}{x+1}\right)^x = e^{\lim_{x \rightarrow \infty} x \left( \frac{x+7}{x+1} - 1 \right)} \) \( = e^{\lim_{x \rightarrow \infty} x \left( \frac{x+7-x-1}{x+1} \right)} \)…