The square root of 8 is the number, which multiplied by itself 2 times, is 8. In other words, this number to the power of 2 equals 8.
Table of Contents
Besides the real values of
along with an explanation, on this page you can also find what the elements of the square root of 8 are called.
In addition to the terminology, we have a calculator you don’t want to miss:
Second Root of 8In this section we provide you with important additional information about the topic of this post:
The term can be written as ²√8 or 8^1/2.
As the index 2 is even and 8 is greater than 0, 8 has two real square roots:
²√8, which is positive and called principal square root of 8, and -²√8 which is negative.
Together, they are denominated as
Although the principal square root of eight is only one of the two square roots, the term “square root of 8” usually refers to the positive number, that is the principal square root.
If you want to know how to find the value of this root, then read our article Square Root located in the header menu.
There, we also discuss the properties for index n = 2 by means of examples: multiplication, division, exponentiation etc.
Next, we have a look at the inverse function.
Inverse of Square Root of 8Extracting the square root is the inverse operation of ^2:
In the following paragraph, we are going to name the elements of this √.
What is the Square Root of 8?You already have the answer to that question, and you also know about the inverse operation of 8 square root.
Keep reading to learn what the parts are called.
- ²√8 is the square root of 8 symbol
- 2 is the index
- 8 = radicand; the radicand is the number below the radical sign
- Square root = ±2.8284271247
- √ is called radical symbol or radical only
As a sidenote: All values on this page have been rounded to ten decimal places.
Now you really know all about ²√8, including its values, parts and the inverse.
If you need to extract the 2nd root of any other real number use our calculator above.
Simply insert the number of which you want to find the square root (e.g. 8); the calculation is done automatically.
If you like our information about ²√8, then a similar square root you may be interested in is, for example: square root of 10.
In the following table you can find the n-th root of 8 for n = 2,3,4,5,6,7,8,9,10.
TableThe aim of this table is to provide you with an overview of the nth roots of 8.
A few lines down from here we review the FAQs.
|2||8||Square Root of 8||²√8||±2.8284271247|
|3||8||Cube Root of 8||³√8||2|
|4||8||Forth Root of 8||⁴√8||±1.6817928305|
|5||8||Fifth Root of 8||⁵√8||1.5157165665|
|6||8||Sixth Root of 8||⁶√8||±1.4142135624|
|7||8||Seventh Root of 8||⁷√8||1.3459001926|
|8||8||Eight Root of 8||⁸√8||±1.2968395547|
|9||8||Nineth Root of 8||⁹√8||1.2599210499|
|10||8||Tenth Root of 8||¹⁰√8||±1.2311444133|
Square Root of EightIf you have been searching for what’s the square root of eight or 2nd root of 8, then you are reading the right post as well.
The same is true if you typed 2 root of 8 or 8 2 root in the search engine of your preference, just to name a few similar terms.
Right below you can find the frequently asked questions in the context.
FAQs About the Square Root of 8Click on the question which is of interest to you to see the collapsible content answer.
How Many Real Square Roots Does 8 Have?
8 has two real square roots, because the radicand 8 is positive and the index 2 is even.
What to the Second Power Equals 8?
The square root of 8 to the power of 2 equals 8.
How Do You Find the Square Root of 8?
Start with an initial guess such that 2 times that value equals approximately 8, then keep improving the guess until you have the required precision.
What is 8 to the Square Root?
8 to the square root = 8^1/2 = ±2.8284271247.
What Number is the Square Root of 8?
The square root of 8 = ±2.8284271247.
How Do You Solve the Square Root of 8?
To compute the 2nd root of 8 use a calculator, and/or employ the Newton–Raphson method.
What is the Value of 2 Root 8?
The value of 2 root 8 is ±2.8284271247.
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Ahead is the wrap-up of our information.
SummaryTo sum up, the square roots of 8 are ±2.8284271247; the positive real value is the principal.
Finding the second root of the number 8 is the inverse operation of rising the ²√8 to the power of 2. That is to say, (±2.8284271247)2 = 8.
Further information about the root of a number like ²√8 can be found on our page n-th Root.
Note that you can also locate roots of real numbers such as ²√8 by means of the search form in the menu and in the sidebar of this site.
If our article about the square √ 8 has been useful to you , then press some of the share buttons located at the bottom of this page.
BTW: A term closely related to square roots is perfect square. We tell you everything about perfect squares in our article Square Numbers.
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