engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Relations and Functions Inverse of a Function
यदि \(f\left( x \right) = \frac{{x - 2}}{{x + 2}},\;x \ne - 2\) है, तब f-1(x) किसके बराबर है?
1
\(\frac{{4\left( {x + 2} \right)}}{{x - 2}}\)
2
\(\frac{{x + 2}}{{4\left( {x - 2} \right)}}\)
3
\(\frac{{x + 2}}{{x - 2}}\)
4
\(\frac{{2\left( {1 + x} \right)}}{{1 - x}}\)