MCQ
The function which is continuous for all real values of $x$ and differentiable at $x = 0$ is
- A$|x|$
- B$\log x$
- ✓$sin\ x$
- D${x^{\frac{1}{2}}}$
✓
Answer
Correct option: C.
$sin\ x$
c
(c) Since $\frac{{dy}}{{dx}} = \cos x$ which is defined at $x = 0$ and no other differential coefficient is defined at $x = 0$
(c) Since $\frac{{dy}}{{dx}} = \cos x$ which is defined at $x = 0$ and no other differential coefficient is defined at $x = 0$
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