Question

What are the two square roots of 1/121​

Answer 1

-1/11, +1/11

Explanation:

You want the two square roots of 1/121.

Square root

A square root can be either positive or negative.

`\pm\sqrt{(1)/(121)}=\pm(1)/(√(121))=\boxed{\pm(1)/(11)}`

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Additional comment

The √ symbol generally means the principal square root, the positive root. To get the negative root, we precede the symbol with a minus sign. So, both square roots are identified as ±√( ).