Chapter 10: Differential Calculus Differentiability and Methods of Differentiation - Online Test

Q1. The derivative of f (x) = x | x | at x = −3 is
Answer : Option A
Explaination / Solution:


Q2. If f (x), then which one of the following is true?
Answer : Option A
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Q3. If f (x) is differentiable at x = 1, then
Answer : Option C
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Q4. The number of points in R in which the function f (x) =| x − 1| + | x − 3| + sin x is not differentiable, is
Answer : Option B
Explaination / Solution: