What is ?
Answer and explanation
Correct answer: C.
- Step 1: The form is : differentiate to get . Again , so . **Answer: . Why not the others:** The other values skip a step or use the wrong constant.
Practise more Calculus: Limits, Derivatives and Integrals.
Free questions with an explanation for every one, and full timed Panhellenic Examinations (Greece) mock tests.