Question 22

Mathematics Limit of Functions Hard

Which of the following is NOT true?

(A) \(\lim _{{x}\rightarrow\infty}\frac{x}{{e}^x}=0\)
(B) \(\lim _{{x}\rightarrow0+}\frac{1}{{xe}^{1/x}}=0\)
(C) \(\lim _{{x}\rightarrow0+}\frac{\sin x}{{1+2x}}=0\)
(D) \(\lim _{{x}\rightarrow0+}\frac{\cos x}{{1+2x}}=0\)
View Dynamic Solution & Explanation
Correct Solution: Option D

Step-by-step Solution:

The fourth choice is not correct, as the limit \[ \lim_{x \to 0^+} \frac{\cos x}{1 + 2x} = 0. \]