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09-01-2022
Mathematics

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Please Help - Let f(x)=x−1/x+1.

(a) Evaluate f^−1(3)=

(b) Evaluate (f^−1)′(3)=
Thank you

Please Help Let fxx1x1 a Evaluate f13 b Evaluate f13 Thank you class=

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Аноним Аноним

17-01-2022

[tex]\\ \sf\longmapsto f(x)=\dfrac{x-1}{x+1}[/tex]

Inverse it

[tex]\\ \sf\longmapsto f^{-1}(x)=\dfrac{1}{f(x)}=\dfrac{x+1}{x-1}[/tex]

#1

[tex]\\ \sf\longmapsto f^{-1}(3)=\dfrac{3+1}{3-1}=\dfrac{4}{2}=2[/tex]

#2

[tex]\\ \sf\longmapsto f^{-1}(3)[/tex]

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