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I found an answer from en.wikipedia.org

Square root - Wikipedia


In mathematics, a square root of a number a is a number y such that y2 = a; in other words, ... For example, the principal square root of 9 is 3, which is denoted by √9 = 3, because 32 = 3 · 3 = 9 and 3 is nonnegative. The term (or number) ...


For more information, see Square root - Wikipedia

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I found an answer from www.britannica.com

Square root | mathematics | Britannica.com


Square root, in mathematics, a factor of a number that, when multiplied by itself, gives the original number. For example, both 3 and –3 are square roots of 9.


For more information, see Square root | mathematics | Britannica.com

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I found an answer from en.wikipedia.org

nth root - Wikipedia


In mathematics, an nth root of a number x, where n is usually assumed to be a positive integer, is a number r which, when raised to the power n yields x: r n = x , {\displaystyle r^{n}=x,} {\displaystyle r^{n}=x,}. where n is the degree of the root. A root of degree 2 is called a square root and a root of degree 3, a cube root. ... −3 is also a square root of 9, since (−3)2 = 9.


For more information, see nth root - Wikipedia

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I found an answer from answers.yahoo.com

whats the square root of 1\9 and 9\4? | Yahoo Answers


Getting the square root is figuring out what that number was before it was multiplied it by itself. For 1/9 the square root of 1 is 1 and the square ...


For more information, see whats the square root of 1\9 and 9\4? | Yahoo Answers

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I found an answer from answers.yahoo.com

Square root of 9 plus the square root of 16? | Yahoo Answers


Things under the square root have the same priority in the order of operations as things in parenthesis. Take the square root of each number ...


For more information, see Square root of 9 plus the square root of 16? | Yahoo Answers

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I found an answer from www.quora.com

What is the square root of 9? - Quora


Square root means a number that produces a specified quantity when multiplied by itself. That may sound confusing but here are some examples to help.


For more information, see What is the square root of 9? - Quora

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I found an answer from www.quora.com

Is the square root of 9 = 3 or +-3? - Quora


Mathematics is really a language to communicate ideas. And like any other language, it only works if the words you use mean the same things to you that they ...


For more information, see Is the square root of 9 = 3 or +-3? - Quora

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I found an answer from mathworld.wolfram.com

Square Root -- from Wolfram MathWorld


Note that any positive real number has two square roots, one positive and one negative. For example, the square roots of 9 are -3 and +3 , since (-3)^2=(+3)^2= 9 ...


For more information, see Square Root -- from Wolfram MathWorld