Functions Question 528
Question: Which of the following is not true
[Kurukshetra CEE 1996]
Options:
A) Every differentiable function is continuous
B) If derivative of a function is zero at all points, then the function is constant
C) If a function has maximum or minima at a point, then the function is differentiable at that point and its derivative is zero
D) If a function is constant, then its derivative is zero at all points
Show Answer
Answer:
Correct Answer: C
Solution:
It is fundamental concept.