MCQ
व्यंजक $\tan \left(\frac{1}{2} \cos ^{-1} \frac{2}{\sqrt{5}}\right)$ का मान है
- A$2+\sqrt{5}$
- ✓$\sqrt{5}-2$
- C$\frac{\sqrt{5}+2}{2}$
- D$5+\sqrt{2}$
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