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Suppose \(f(x)\) is an invertible function, and suppose that \(f(2)=f^{-1}(2)=4\).what is the value of \(f(f(2))\)?

 Feb 15, 2019
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\(f(2) = f^{-1}(2) = 4\\ \text{Take }f(\cdot) \text{ of both sides}\\ f(f(2)) = f(f^{-1}(2)) = 2\)

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 Feb 15, 2019

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