JamaicaF648463
JamaicaF648463
03-11-2022
Mathematics
contestada
If ƒ (7) = 22, thenf-¹(f(7)) = [?]
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YohanF173519
YohanF173519
03-11-2022
Remember the following property of invertible functions:
[tex]f(x)=y\qquad\Leftrightarrow\quad f^{-1}(y)=x[/tex]
Then:
[tex]f^{-1}(f(x))=x\qquad\forall x[/tex]
Then:
[tex]f^{-1}(f(7))=7[/tex]
Therefore, the answer is:
7
.
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