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[" If "f(x)=x|x|" then "f^(-1)(x)" equal...

[" If "f(x)=x|x|" then "f^(-1)(x)" equals- "],[[" (A) "sqrt(|x|)," (B) "(sgn x)*sqrt(|x|)," (C) "-sqrt(|x|)," (D) Does not exist "]]

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