Which of the following is not true [Kurukshetra CEE 1996]

1.	Which of the following is not true [Kurukshetra CEE 1996]
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
Answer» D. If a function is constant, then its derivative is zero at all points

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Which of the following is not true [Kurukshetra CEE 1996]

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