Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Mathematics Trigonometry Inverse Trigonometric Functions
The simplest form of \(\rm \tan^{-1}\left\{\frac{x}{\sqrt{a^2-x^2}}\right\}\) is, where -a < x < a
1
\(\rm tan^{-1}\frac{x}{a}\)
2
tan-1 (ax)
3
\(\rm a \tan^{-1}\frac{x}{a}\)
4
\(\rm \sin^{-1}\frac{x}{a}\)