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OpenStudy (anonymous):
The function below does not have an inverse. Restrict the domain of the function so that the restricted function has an inverse. f(x) = 2(x + 1)2 - 8
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hero (hero):
\[f^{-1}(x) = \sqrt{\frac{x+8}{2}}-1\]
hero (hero):
Says it doesn't have an inverse, but I just found the inverse anyway
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