A) f is differentiable everywhere
B) f is continuous everywhere but not differentiable
C) f is discontinuous at \[x=\frac{n\pi }{2},\,n\in I\]
D) f is non-differentiable at \[x=\frac{n\pi }{2},\,n\in I\]
Correct Answer: B
Solution :
[b] \[f(x)=\max .\,\,\,\{sinx,si{{n}^{-1}}(\cos x)\}\] Clearly, \[f(x)\]is continuous but non-differentiable at infinite points.You need to login to perform this action.
You will be redirected in
3 sec