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Is the square root of any real number always a real number?

No, it is not, because real numbers include negative numbers. The square root of a negative number is an imaginary number


Are real numbers closed under the square root operation?

No. Negative numbers are real but their square roots are not.


Is the square root of negative 3 an irrational or a real number?

The square root of a negative number is considered an imaginary number, denoted as "i". In this case, the square root of -3 would be √(-3) = √3 * i. Therefore, the square root of -3 is not a real number, as real numbers are those that can be represented on the number line without involving "i".


How many square roots do negative numbers have?

Negative numbers do not have "real number" square roots.However, they will have two roots (when using imaginary numbers) as do other numbers, where a root including i(square root of -1) is positive or negative.


Why is it possible to find a real cube root of a negative number but not a real square root of a negative number?

You cannot get real square root of a negative number because two numbers multiplied by themselves are always positive You can always get a real cube root of a negative number because three negative numbers multiplied by themselves give a negative .


Is non-real numbers exist?

no, every number is a real number --- There are numbers that are not real numbers. They are called imaginary numbers, and have the property that when they are squared, the result is negative. The square root of -1 is called i, and the square root of any other negative number is i times the square root of the absolute value of the number. So the square root of -4 is 2i.


Is the square root of negative 121 undefined?

Yes, the square root of negative 121 is undefined in the set of real numbers. However, in the set of complex numbers, the square root of negative 121 is equal to 11i, where i is the imaginary unit.


What are characteristics of square root functions?

There are two square root functions from the non-negative real numbers to either the non-negative real numbers (Quadrant I) or to the non-positive real numbers (Quadrant IV). The two functions are symmetrical about the horizontal axis.


How can there be a square root of a negative number?

Square roots of negative numbers are what are called imaginary numbers. The building block of imaginary numbers is the symbol i which is defined as the square root of negative 1. The square root of other negative numbers can be expressed using i. For example, the square root of negative sixteen is 4i, the square root of negative nine is 3i and so on.


What is the square root of negative forty nine?

The square root of negative forty-nine (-49) has no value over real numbers. However, over complex numbers, the square root of -49 is ±7i, where "i" is the imaginary unit, which i2 = -1.


What is a number that is not real?

i, which is *defined* as the square root of -1, is imaginary, not real. The square root of -1 is i, the square root of -4 is 2i, the square root of -9 is 3i, etc. i, 2i, 3i, 4i, 5i, etc. = non-real numbers. 'Real' numbers are all of the numbers in the world: integers, rational numbers, irrational numbers, positive, negative, etc. Non-real (imaginary) numbers are numbers that exist only in theory such as the square root of a negative number, or the roots of an equation that never reaches the x-axis. (They are noted with the lowercase letter i for imaginary). This concept is very distant to most people outside of math classes.


What is examples of real numbers?

First of all, the correct grammar is to say "What areexamples of real numbers?" not "What is". Real numbers are any number from negative infinity to positive infinity. These include 1.555, 3, -6, -563.786, 10, etc. The only numbers that are no real numbers are imaginary numbers which involve the square root of negative numbers. It is immpossible to take the square root of a negative number so those numbers are not real.