MCQ
यदि $y=\sin ^{-1}\left(3 x-4 x^3\right)$ तब $\frac{d y}{d x}=$ ?
- ✓$\frac{3}{\sqrt{1-x^2}}$
- B$\frac{-4}{\sqrt{1-x^2}}$
- C$\frac{3}{\sqrt{1+x^2}}$
- Dइनमें से कोई नहीं
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