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Let f(x)""=""(x""+""1)^2 - 1,""xgeq""-1 ...

Let `f(x)""=""(x""+""1)^2 - 1,""xgeq""-1` Statement 1: The set `{x"":""f(x)""=""f^-1(x)}""=""{0,-1}` . Statement 2: f is a bijection.

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