Question Detail

MTH 102 Limits Objective Question

Question

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

Option C is the correct answer.

Detailed Explanation

Using rationalisation or L'Hospital's rule, the derivative of ( \sqrt{x} ) is ( \frac{1}{2\sqrt{x}} ). At ( x=1 ), this is ( \frac{1}{2} ).

Hint

Example 6.

Question Info