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Yes. In general, the square root of any non-negative number is a real number.

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โˆ™ 2014-08-28 16:37:16
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Q: Is the square root of 2 a real number?
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The nonnegative square root of a number?

The unique nonnegative square root of a nonnegative real number. For example, the principal square root of 9 is 3, although both -3 and 3 are square roots of 9.


What is it example of a real number that is not a rational number?

the square root of 2


A number that is real and irrational?

Square root of (2) Pi


What is an Example of a real number that is not a rational number?

pi, or the square root of 2.


Is the square root of 4 a real number?

Yes. The square root of 4 is 2, because 2 times itself is 4.


What is the quare root of -1?

The square root of -1 is not a real number like -2.5, 0, or 5. Instead, it is and imaginary number, i, and i = the square root of -1. The answer is imaginary because you can never take a real number, square it, and get a negative number. However, i^2 = -1.


What is an example of a real number that is not rational?

The square root of 2 is real number but it is not rational number because it can't be expressed as a fraction.


Is every real number also a rational number?

No. "Pi", "e", and the square root of 2 are all real and irrational.


Is the square root a 2 an irrational number?

Yes, the square root of 2 is an irrational number.


What is the square root of the number square root of which is 2?

.5


Square root of 2?

the square root of 2 is (an irrational number): 1.41421356....


Prove that square root of 2 is an irrational number?

The square root of 2 is 1.141..... is an irrational number


What is the square root of the number that's square root is 2?

Square root of 2= 1 You should know this idiots!


Is a square root of 2 rational or irrational?

The square root of 2 is an irrational number


What is the square root of -28?

the square root of -28 is the square root of -1 time the square root of 28. The square root of -1 is not a real number, it is represented by i. The square root of 28 is the square root of 4 times the square root of 7 (4*7=28) The square root 4 is equal to 2, and the square root of 7 cannot be simplified.The answer is 2i√7.


Is the square root of a positive number an irrational number?

Sometimes the square root of a positive number can be irrational, as in the square root of 2 (which is a non-perfect square number), but sometimes it is a rational number, as in the square root of 25 (which is a perfect square number).


Is the square root of -4 irrational?

The square root of -4 is not irrational, it is imaginary. Irrational numbers are numbers that cannot be expressed as a fraction, like the square root of 2. Irrational numbers, however, are a subset of real numbers. The square root of -4 however, is not even a real number because no real number, when squared, gives -4. Therefore the square root of -4 is an imaginary number.In calculus, the root is expressed as 2i where iis the square root of -1.


What is an imaginary number?

The square root of a negative real number is an imaginary number.We know square root is defined only for positive numbers.For example,1) Find the square root of (-1)It is imaginary. We say that square root of (-1) is i.In fact they are not real numbers.2) Find the square root of (-4)-4 can be written as (-1)(4)Square root of 4 is 2 and square root of (-1) is iSo, the square root of -4 is 2i.Similarly, we can find the square root of other negative numbers also.Source: www.icoachmath.comAn imaginary number is defined to handle square roots of negative numbers. The imaginary unit i is defined as the 'positive' square root of -1.


Is the square root of -2 a rational number?

No. It isn't a real number, either - it's a so-called complex number.


What are the 2 operation in a real numbers if it is undefined?

Division by zero and square root of negatve number


What is a real number that is not a rational number?

Pi, e, square root of 2, -sqrt(3), log(2). These are all examples of real irrational numbers.


Are some real numbers irrational?

Yes, as for example the square root of 2 is a real number but it is an irrational number that can't be expressed as a fraction.


What are examples of real numbers?

1,2,3,4,5,6,1/2, 3/4 these are all real. the square root of negative is an unreal number.


How do you square a square root?

The square of any square root is equal to the number itself. For example, the square of the square root of 2 squared is equal to 2. The square root of 10 squared is equal to 10.Similarly, the square of the square root of 2 is equal to 2.


Is the length diagonal of a square with side 5 a real number?

It is a real number in the sense that it is an irrational number which can't be expressed as a fraction and its length is 5 times the square root of 2