MCQ
$\cot \left[ {{\tan }^{-1}}\left( \cos \left( {{\cot }^{-1}}\left( \cos ec\left( {{\cos }^{-1}}a \right) \right) \right) \right) \right]=......$ ( જ્યાં $0$$<$$a$$<$$1$ ).
- A$\frac{1}{\sqrt{3-{{a}^{2}}}}$
- B$\frac{1}{\sqrt{2-{{a}^{2}}}}$
- C$\sqrt{3-a^2}$
- ✓$\sqrt{2-{{a}^{2}}}$