Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Trigonometry Inverse Trigonometric Functions
The simplest form of \(\rm \tan^{-1}\frac{\sqrt{1+x^2}-1}{x}\), x ≠ 0 is:
1
tan-1 x
2
x
3
\(\frac{1}{2}\tan^{-1}x\)
4
More than one of the above
5
None of the above