Answer :

Limit the domain to x > 0 for it to be one to one

How to limit the domain for it to be one to one?

The function is given as:

f(x)= x^4

The above function is an even function

This means that

f(x) = f(-x)

So, for the function to be one to one, we have to limit the function to only the positive x values

Hence, limit the domain to x > 0 for it to be one to one

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