# How do you find the domain of square root of 1-x^2?

##### 1 Answer

#### Explanation:

A square root with a negative number under the root cannot produce a real number. This means that

Squaring a real number will always produce a positive number, so

A square root with a negative number under the root cannot produce a real number. This means that

Squaring a real number will always produce a positive number, so