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Mashutka [201]
3 years ago
6

What is the inverse of f(x)=2-2x

Mathematics
1 answer:
juin [17]3 years ago
6 0
In the usual sense, it has no inverse function. Since it is not an injection (f(0)=f(2)=0), an inverse function would have to map 0 both to 0 and 2, and that’s impossible.

However, if you restrict the domain to [1,+oo> (to make it injective), and the codomain to [-1,+oo> (to make it surjective), then it has an inverse function, given by g(y)=1+sqrt(y+1).
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