# How do you find the domain of #1/(x^2+x+1)#?

##### 1 Answer

Jul 16, 2016

#### Answer:

The domain is the whole of the Real numbers, i.e.

#### Explanation:

This has discriminant:

#Delta = b^2-4ac = 1-4 = -3#

Since

Let:

#f(x) = 1/(x^2+x+1)#

Then for all Real values of

So the domain of