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Suppose that \(f\) is a function and \(f^{-1}\) is the inverse of \(f\). If \(f(1)=2\)\(f(2) = 6\), and \(f(3)=5\), then what is \(f^{-1}(f^{-1}(6))\)?

tertre  Mar 11, 2018
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f(1)  = 2  ⇒  f-1(2)  = 1  

 

f(2)  =  6     ⇒  f-1(6)  = 2

 

So

 

f-1 (f-1 (6) )   =   f-1 (2)  =   1

 

 

cool cool cool

CPhill  Mar 11, 2018

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