MCQ
Function $f(x) = {\sin ^{ - 1}}\left( {3x - 4{x^3}} \right)$ is
- Aalways difierentiable
- ✓not differentiable at $2$ points
- Cnot continuous at $2$ points
- Dnot differentiable at $3$ points
✓
Answer
Correct option: B.
not differentiable at $2$ points
b
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