if-f-x-ln-x-1-x-2-1-x-2-f-1-x-

Question Number 66715 by mr W last updated on 18/Aug/19

i f f (x) = \frac{\ln (x + \sqrt{1 + x^{2}})}{\sqrt{1 + x^{2}}}

f^{- 1} (x) = ?

Commented by Tony Lin last updated on 19/Aug/19

Commented by Tony Lin last updated on 19/Aug/19

i t s e e m s t h a t f^{- 1} (x) m a y n o t e x i s t

Commented by mr W last updated on 19/Aug/19

t h a n k s f o r t r y i n g s i r!

Commented by mathmax by abdo last updated on 19/Aug/19

f^{- 1} (x) e x i s t b u t n o t s i m p l e t o f i n d i t .