Choose the correct options for the following questions.
If $f(x)=3x^{3}+7$, then $f^(-1)=$
Difficulty: Easy
A:
$(\frac{3}{8})^{\frac{1}{3}}$
B:
$(\frac{-8}{8})^{\frac{1}{3}}$
C:
$(\frac{-3}{8})^{\frac{1}{3}}$
D:
$(\frac{1}{8})^{\frac{1}{3}}$
If f(x)=-2x+8 then $f^(-1)=$
Difficulty: Easy
A:
10
B:
-10
C:
4
D:
9/2
The domain of $f^{-1}(x)$ of the function $f(x)=(x-50^{2})$ is
Difficulty: Easy
A:
$[0, \propto)$
B:
$(5, \propto)$
C:
$[5, \propto)$
D:
$[0, \propto]$
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