Question

Calculus help!!, Someone explain me, please. Attachments on comment

Answer 1

At the end of the second attachment, I don't understand why
\(f'(f^{-1}(x))(f^{-1}(x))'=1\)

Answer 2

@zepdrix @abb0t

Answer 3

just start with y=f(x)
x=f^-1(y)
do implicit diff
you should achieve that result
that gives us derivative of inverse functions

Answer 4

perhaps you are already familiar with that since you tool calc before

Answer 5

\(f(f^{-1}(x))=x\) hence derivative of it =1, understandable, but the last one is derivative of \(f^{-1}(x)\) , how can it =1?

Answer 6

You know what I mean?

Answer 7

hmm im looking at attachment..