# Hiii can you pls help me what is the definition domain of (1+x)/(1+x^2)?

##### 1 Answer

Oct 21, 2017

All real numbers.

#### Explanation:

Hey there!

So I'm not 100% sure on what a 'definition domain' is, but I'm going to assume that you just mean the domain.

For a fraction with polynomials like this, the domain will be all real numbers except when the denominator equals

So for

Subtracting

Hope this helps!