Question Detail

MTH 102 Limits Objective Question

Question

Evaluate the limit of \( \frac{8^x - 2^x}{4x} \) as \( x \) tends to 0.
Options
A \( \ln 4 \)
B \( \ln 2 \)
C \( \frac{1}{4} \ln 4 \)
Correct Answer
D \( \frac{\ln 8}{4} \)
Correct Answer

Option C is the correct answer.

Detailed Explanation

Using L'Hospital's rule: ( \frac{8^x \ln 8 - 2^x \ln 2}{4} ). At ( x=0 ), ( \frac{\ln 8 - \ln 2}{4} = \frac{\ln 4}{4} = \frac{1}{4} \ln 4 ).

Hint

Exercise 1.1, Question 33.

Question Info