Find f−1(x)f^{-1}(x)f−1(x) for f(x)=x3f(x) = \sqrt[3]{x}f(x)=3x.
f−1(x)=1/xf^{-1}(x) = 1/xf−1(x)=1/x
f−1(x)=−x3f^{-1}(x) = -\sqrt[3]{x}f−1(x)=−3x
f−1(x)=x3f^{-1}(x) = x^3f−1(x)=x3
f−1(x)=xf^{-1}(x) = \sqrt{x}f−1(x)=x