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OpenStudy (anonymous):
Another problem i dont really understand? Help please!!
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OpenStudy (anonymous):
\[Let f(x) = x2 - 81. Find f-1(x). \]
OpenStudy (anonymous):
@SolomonZelman hey you were a great help last time thanks
OpenStudy (anonymous):
Anyone else who helps is greatly appreciated
OpenStudy (anonymous):
oh and sorry im bad at typing equations that is f to the power of negative one
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