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Mathematics

OpenStudy (anonymous):

Let f(x) = x2 – 81. Find f–1(x).

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OpenStudy (anonymous):

Is this the same as subtracting 1 to the function f(x)?

OpenStudy (anonymous):

Or maybe you just have to multiply everything in the function by (-1) It's really hard to tell.

jimthompson5910 (jim_thompson5910):

Most likely he wants \[\Large f^{-1}(x)\]

OpenStudy (nali):

do u mean f^-1

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