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Let f(x)=2−xf(x)=\sqrt{2-x} (A) Why Does ff Have an Inverse That Is a Function?
(B) Find a Is

Question 23

Essay

Let f(x)=2−xf(x)=\sqrt{2-x}
(a) Why does ff have an inverse that is a function?
(b) Find a rule for f−1(x)f^{-1}(x) and state its domain.

Correct Answer:

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(a) f passes the h...

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