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Imaginary numbers are only ever used when you are using the square roots of negative numbers. The square root of -1 is i.

You may find imaginary numbers when you are finding roots of equations.

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โˆ™ 2012-02-10 14:19:56
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Related questions

Are imaginary numbers irrational numbers?

No. Irrational numbers are real numbers, therefore it is not imaginary.


What is the difference between imaginary numbers and complex numbers?

No difference. The set of complex numbers includes the set of imaginary numbers.


Is the imaginary unit 8i irrational?

No, it is imaginary. Irrational numbers are a subset of real numbers Real numbers and imaginary numbers are sets without any overlap.


Can a complex number be imaginary?

Yes, imaginary numbers are a subset of complex numbers.


Which of these sets of numbers is not a subset of the real numbers irrational integer rational and imaginary?

Imaginary numbers are not a subset of the real numbers; imaginary means not real.


What type of number sets are sub sets of the complex numbers?

The set of Real NumbersThe set of Imaginary Numbers


Which number belongs to the set of imaginary numbers 2?

2 does belong to the set of imaginary numbers. Any real number is also imaginary. Imaginary numbers are the set of all numbers that can be expressed as a +b*i where "i" is the square root of negative one and "a" and "b" are both real numbers.


What are imagery numbers?

imaginary numbers are numbers that are a negative square root, which is not possoble therefor it is called and imaginary number. ex the square root of -24 is an imaginary number


What is complex math?

Complex math covers how to do operations on complex numbers. Complex numbers include real numbers, imaginary numbers, and the combination of real+imaginary numbers.


When were imaginary numbers invented?

Rafael Bombelli defined imaginary numbers in 1572, and Descartes named them 'imaginary' in 1637. It wasn't until the work of Euler in the 1700's that a usefulness for imaginary numbers was found, though. See the Wikipedia articles I linked for some good information on imaginary and complex numbers. I also linked an explanatory video that is pretty good as well.


The symbol for imaginary numbers is?

An imaginary number is symbolized by the letter i


How are real numbers imaginary numbers and complex numbers related?

It helps to visualize the numbers on a plane. The complex numbers occupy the entire plane. The real numbers are all the numbers on the horizontal axis, the imaginary numbers are all the numbers on the vertical axis. A complex number thus has a real and an imaginary part, a + bi, where a and be are real numbers (for example, 3 - 2i).


Where does the negative sign go in imaginary numbers?

The basic theory of imaginary numbers is that because (-) numbers squared are the same as (+) numbers squared there is not a correct continueos line on a graph.


What are known numbers?

non-imaginary numbers


What is the differrent of imaginary numbers to complex numbers?

Imaginary number is a number that consist of only Imaginary part. Such as i, 40i, 1/2i, etc. While the difference between the imaginary numbers and the complex numbers are that complex number also contains Real numbers, and can be written as a + bi. For example, 30+i, 1/2+1/2i, etc.


Are all imaginary numbers are real numbers?

No. None are because the opposite of a real number is an imaginary number. In real numbers there are rational, irrational, counting, whole numbers, and integers.


Is the product of two imaginary numbers always a pure imaginary number?

no


Is -4 a imaginary number?

No, both positive and negative numbers are part of the so-called "real" numbers. The so-called "imaginary" numbers are outside the number line.Imagine the real numbers as a line from left to right, and the imaginary numbers a a separate line, from top to bottom. The place where they meet is zero. Positive is to the right of zero, negative to the left, imaginary numbers like +i or +3i to the top of zero, and negative imaginary numbes like -5i to the bottom of zero.


Is an imaginary number always sometimes or never a complex number?

Always. The set of imaginary numbers is a subset of complex numbers. Think of complex numbers as a plane (2 dimensional). The real numbers exist on the horizontal axis. The pure imaginary are the vertical axis. All other points on the plane are combinations of real and imaginary. All points on the plane (including imaginary axis and real axis) are complex numbers.


Why do imaginary answers occur in quadratic equations?

imaginary numbers occur in the quadratic formula because of the radical symbol, and the possibility of a negative radican and that results in imaginary numbers. I hope this helped!


How are irrational numbers real numbers?

They aren't imaginary.


What is the mathematical importance of imaginary numbers?

The mathematical importance of an imaginary number is to allow the result of a square root of the imaginary number to equal a negative number. One can find more extensive information on imaginary numbers and their importance on the Wikipedia website.


Can a number be both complex and imaginary?

A complex number has a real part and a (purely) imaginary part, So imaginary numbers are a subset of complex numbers. But the converse is not true. A real number is also a member of the complex domain but it is not an imaginary number.


How do you turn imaginary numbers into real numbers?

The imaginary number (i) is defined as the square root of -1. If you multiply i by i you get -1


How were imaginary numbers discovered?

Imaginary numbers were discovered when mathematicians tried to solve equations of the form x^2 + 2 = 0