Limit the domain to x > 0 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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