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OpenStudy (anonymous):
Help on these pre-calc questions? I give medals(: 1. For a one-to-one function, y=f(x) then x=f^-1(y). Is this true or false? 2. For any function, x=f-1(y), then y=f(x). True or false? 3. sec^-1 0.5 is undefined. True or false? Could you explain the answers as well? I don't really quite understand it. Thanks(:
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