4 years ago

If f(x)=x^2-1, what is the equation for f^-1(x)

Mathematics

1 answer:

Alekssandra [29.7K]4 years ago

8 0

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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Answer:

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This means that there are 5 girls in the class.

I hope this helps! :)

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