MCQ
यदि $\sin y=x \sin (a+y)$ तो $\frac{d y}{d x}=$
- A$\sin (a+y)$
- B$\sin ^2(a+y)$
- C$\frac{\sin (a+y)}{\sin a}$
- ✓$\frac{\sin ^2(a+y)}{\sin a}$
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