MCQ
यदि $\sin \theta \frac{a}{b}$ तो $\cos \theta$ का मान है
- A$\frac{b}{\sqrt{b^2-a^2}}$
- ✓$\frac{\sqrt{b^2-a^2}}{b}$
- C$\frac{a}{\sqrt{b^2-a^2}}$
- D$\frac{b}{a}$
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