Using L'Hôpital's rule, evaluate the indeterminate limit .
Answer and explanation
Correct answer: B.
- Step 1: Substitution of gives form . Differentiate numerator and denominator with respect to . Step 2. Numerator derivative: ; denominator derivative: . The limit is . **Answer: . Why not the others:** inverts the ratio; 1 treats both derivatives as equal.
Practise more Calculus and Optimization.
Free questions with an explanation for every one, and full timed VWO / HAVO Centraal Examen (Netherlands) mock tests.
More Calculus and Optimization questions
- What is the derivative of with respect to for ?
- What is the equation of the tangent line to the curve at the point where ?
- Evaluate the definite integral .
- What is the total area bounded by the parabola and the line ?
- A rectangular garden is to be fenced using 40 metres of fencing along three sides, with an existing brick wall forming the fourth side. What…
- Evaluate the improper integral .