MCQ
यदि $\sin y=x \sin (a+y)$ तब $\frac{d y}{d x}$ का मान है :
- A$\frac{\sin ^2 a}{\sin ^2(a+y)}$
- ✓$\frac{\sin ^2(a+y)}{\sin a}$
- C$\frac{\sin a}{\sin (a+y)}$
- D$\frac{\sin (a+y)}{\sin a}$
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