Secondary III • 26d

The domain of a function is R and its codomain is R also.

Whether it means the function has a zero value at least?

I think it doesn’t. Am I right?

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Secondary III • 26d

The domain of a function is R and its codomain is R also.

Whether it means the function has a zero value at least?

I think it doesn’t. Am I right?

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

Hi,

You are correct. The domain and codomain of a function being both R simply means that the function takes real numbers as inputs and produces real numbers as outputs. However, this information alone does not imply anything specific about the values the function can take.

A function from R to R might or might not have a zero value. For example:

Hope that helps !

Have a good day :)