Question Detail
Question
Evaluate the limit of \( \frac{\cos x - \sin 2x}{x^2} \) as \( x \) approaches 0.
Correct Answer
Option B is the correct answer.
Detailed Explanation
At ( x=0 ), ( \cos x = 1 ) and ( \sin 2x = 0 ). The expression is ( \frac{1}{0} ), which is undefined.
Hint
Exercise 1.1, Question 25.