What is the inverse function of f(x)=x^2?

William Burnett

William Burnett

Answered question

2021-12-16

What is the inverse function of f(x)=x2?

Answer & Explanation

einfachmoipf

einfachmoipf

Beginner2021-12-17Added 32 answers

Hence f(x)=x2y=x2y=x2y=|x|x=±y
Wendy Boykin

Wendy Boykin

Beginner2021-12-18Added 35 answers

Explanation:
If we try to solve y=x2 for x we do not get a single value.That means we do not get a function.
We get x=±y
In order to be invertible a function must be one-to-one.
That means that we must have:
for every x1x2, we have f(1)=f(1) (for example), so there is no inverse function.

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