In details

Radication


What is root settlement?

We already know that 6² = 36. We will now learn the operation that allows us to determine which number squared equals 36.

, because 6 squared is 36.

This operation is the inverse of potentiation and is called root.

Another examples:

, because 2³ = 8.
, because .

Thus:

Notation

Reading

(reads “square root of 81”)
(reads “64 cubic root”)
(reads “root fourth of 16”)

Note:
In square root indication, we can omit index 2. For example, .

Next: Even Index Roots