Functions Question 502
Question: The function which is continuous for all real values of x and differentiable at $ x=0 $ is
[MP PET 1996]
Options:
A) $ |x| $
B) $ \log x $
C) sin x
D) $ {x^{\frac{1}{2}}} $
Show Answer
Answer:
Correct Answer: C
Solution:
Since $ \frac{dy}{dx}=\cos x $ which is defined at $ x=0 $ and no other differential coefficient is defined at $ x=0 $