MCQ
${\cot ^{ - 1}}3 + {\rm{cose}}{{\rm{c}}^{ - 1}}\sqrt 5 =$
- A$\frac{\pi }{3}$
- ✓$\frac{\pi }{4}$
- C$\frac{\pi }{6}$
- D$\frac{\pi }{2}$
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