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  • 27-05-2018
  • Mathematics
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if f(x)=x^2-1, what is the equation for f^-1(x)

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Аноним Аноним
  • 27-05-2018
Let y = x^2 - 1
x^2 = y + 1

x = sqrt(y + 1)

so f^-1(x)  = sqrt (x + 1)  (answer)
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