Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Trigonometry Trigonometric Functions
The value of tan \(\frac{\pi }{8}\) is equal to
1
√2 - 1
2
\(\frac{1}{{\sqrt 2 - 1}}\)
3
-√2 - 1
4
More than one of the above
5
None of the above