NDA 2017 Mathematics question
Consider the following statements : 1. Derivative of may not exist at some point. 2. Derivative of may exist finitely at some point. 3. Derivative of may be infinite (geometrically) at some point. Which of the above statements are correct?
Answer: (D)
Solution
All three situations occur: has no derivative at 0 (statement 1); has the finite derivative at every point
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