Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Trigonometry Inverse Trigonometric Functions
If \({\sin ^{ - 1}}\,x + {\cot ^{ - 1}}\left( {\frac{1}{2}} \right) = \frac{\pi }{2}\) then x is
1
0
2
\(\frac{1}{{\sqrt 5 }}\)
3
\(\frac{2}{{\sqrt 5 }}\)
4
More than one of the above.
5
None of the above